+ User Manual
http://dl.linux-sunxi.org/A20/A20%20User%20Manual%202013-03-22.pdf
- - Allwinner A23
+ - Allwinner A23 (sun8i)
+ Datasheet
http://dl.linux-sunxi.org/A23/A23%20Datasheet%20V1.0%2020130830.pdf
+ User Manual
+ User Manual
http://dl.linux-sunxi.org/A31/A3x_release_document/A31s/IC/A31s%20User%20Manual%20%20V1.0%2020130322.pdf
+ - Allwinner A33 (sun8i)
+ + Datasheet
+ http://dl.linux-sunxi.org/A33/A33%20Datasheet%20release%201.1.pdf
+ + User Manual
+ http://dl.linux-sunxi.org/A33/A33%20user%20manual%20release%201.1.pdf
+
+ - Allwinner H3 (sun8i)
+ + Datasheet
+ http://dl.linux-sunxi.org/H3/Allwinner_H3_Datasheet_V1.0.pdf
+
* Quad ARM Cortex-A15, Quad ARM Cortex-A7 based SoCs
- Allwinner A80
+ Datasheet
http://dl.linux-sunxi.org/A80/A80_Datasheet_Revision_1.0_0404.pdf
+
+ * Octa ARM Cortex-A7 based SoCs
+ - Allwinner A83T
+ + Not Supported
+ + Datasheet
+ http://dl.linux-sunxi.org/A83T/A83T_datasheet_Revision_1.1.pdf
allwinner,sun6i-a31
allwinner,sun7i-a20
allwinner,sun8i-a23
+ allwinner,sun8i-a33
+ allwinner,sun8i-h3
allwinner,sun9i-a80
Required properties:
- compatible : Should be of the form "ti,emif-<ip-rev>" where <ip-rev>
is the IP revision of the specific EMIF instance.
+ For am437x should be ti,emif-am4372.
- phy-type : <u32> indicating the DDR phy type. Following are the
allowed values
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/boot/dts/vexpress*
+F: arch/arm64/boot/dts/arm/vexpress*
F: arch/arm/mach-vexpress/
F: */*/vexpress*
F: */*/*/vexpress*
W: http://www.penguinppc.org/
L: linuxppc-dev@lists.ozlabs.org
Q: http://patchwork.ozlabs.org/project/linuxppc-dev/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
S: Supported
F: Documentation/powerpc/
F: arch/powerpc/
status = "okay";
};
};
+
+&rtc {
+ system-power-controller;
+};
};
};
+ emif: emif@4c000000 {
+ compatible = "ti,emif-am4372";
+ reg = <0x4c000000 0x1000000>;
+ ti,hwmods = "emif";
+ };
+
edma: edma@49000000 {
compatible = "ti,edma3";
ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
ti,hwmods = "dss_rfbi";
clocks = <&disp_clk>;
clock-names = "fck";
+ status = "disabled";
};
};
phy-supply = <&ldousb_reg>;
};
+&usb2_phy2 {
+ phy-supply = <&ldousb_reg>;
+};
+
&usb1 {
dr_mode = "host";
pinctrl-names = "default";
compatible = "sirf,atlas7-ioc";
reg = <0x18880000 0x1000>,
<0x10E40000 0x1000>;
+
+ audio_ac97_pmx: audio_ac97@0 {
+ audio_ac97 {
+ groups = "audio_ac97_grp";
+ function = "audio_ac97";
+ };
+ };
+
+ audio_func_dbg_pmx: audio_func_dbg@0 {
+ audio_func_dbg {
+ groups = "audio_func_dbg_grp";
+ function = "audio_func_dbg";
+ };
+ };
+
+ audio_i2s_pmx: audio_i2s@0 {
+ audio_i2s {
+ groups = "audio_i2s_grp";
+ function = "audio_i2s";
+ };
+ };
+
+ audio_i2s_2ch_pmx: audio_i2s_2ch@0 {
+ audio_i2s_2ch {
+ groups = "audio_i2s_2ch_grp";
+ function = "audio_i2s_2ch";
+ };
+ };
+
+ audio_i2s_extclk_pmx: audio_i2s_extclk@0 {
+ audio_i2s_extclk {
+ groups = "audio_i2s_extclk_grp";
+ function = "audio_i2s_extclk";
+ };
+ };
+
+ audio_uart0_pmx: audio_uart0@0 {
+ audio_uart0 {
+ groups = "audio_uart0_grp";
+ function = "audio_uart0";
+ };
+ };
+
+ audio_uart1_pmx: audio_uart1@0 {
+ audio_uart1 {
+ groups = "audio_uart1_grp";
+ function = "audio_uart1";
+ };
+ };
+
+ audio_uart2_pmx0: audio_uart2@0 {
+ audio_uart2_0 {
+ groups = "audio_uart2_grp0";
+ function = "audio_uart2_m0";
+ };
+ };
+
+ audio_uart2_pmx1: audio_uart2@1 {
+ audio_uart2_1 {
+ groups = "audio_uart2_grp1";
+ function = "audio_uart2_m1";
+ };
+ };
+
+ c_can_trnsvr_pmx: c_can_trnsvr@0 {
+ c_can_trnsvr {
+ groups = "c_can_trnsvr_grp";
+ function = "c_can_trnsvr";
+ };
+ };
+
+ c0_can_pmx0: c0_can@0 {
+ c0_can_0 {
+ groups = "c0_can_grp0";
+ function = "c0_can_m0";
+ };
+ };
+
+ c0_can_pmx1: c0_can@1 {
+ c0_can_1 {
+ groups = "c0_can_grp1";
+ function = "c0_can_m1";
+ };
+ };
+
+ c1_can_pmx0: c1_can@0 {
+ c1_can_0 {
+ groups = "c1_can_grp0";
+ function = "c1_can_m0";
+ };
+ };
+
+ c1_can_pmx1: c1_can@1 {
+ c1_can_1 {
+ groups = "c1_can_grp1";
+ function = "c1_can_m1";
+ };
+ };
+
+ c1_can_pmx2: c1_can@2 {
+ c1_can_2 {
+ groups = "c1_can_grp2";
+ function = "c1_can_m2";
+ };
+ };
+
+ ca_audio_lpc_pmx: ca_audio_lpc@0 {
+ ca_audio_lpc {
+ groups = "ca_audio_lpc_grp";
+ function = "ca_audio_lpc";
+ };
+ };
+
+ ca_bt_lpc_pmx: ca_bt_lpc@0 {
+ ca_bt_lpc {
+ groups = "ca_bt_lpc_grp";
+ function = "ca_bt_lpc";
+ };
+ };
+
+ ca_coex_pmx: ca_coex@0 {
+ ca_coex {
+ groups = "ca_coex_grp";
+ function = "ca_coex";
+ };
+ };
+
+ ca_curator_lpc_pmx: ca_curator_lpc@0 {
+ ca_curator_lpc {
+ groups = "ca_curator_lpc_grp";
+ function = "ca_curator_lpc";
+ };
+ };
+
+ ca_pcm_debug_pmx: ca_pcm_debug@0 {
+ ca_pcm_debug {
+ groups = "ca_pcm_debug_grp";
+ function = "ca_pcm_debug";
+ };
+ };
+
+ ca_pio_pmx: ca_pio@0 {
+ ca_pio {
+ groups = "ca_pio_grp";
+ function = "ca_pio";
+ };
+ };
+
+ ca_sdio_debug_pmx: ca_sdio_debug@0 {
+ ca_sdio_debug {
+ groups = "ca_sdio_debug_grp";
+ function = "ca_sdio_debug";
+ };
+ };
+
+ ca_spi_pmx: ca_spi@0 {
+ ca_spi {
+ groups = "ca_spi_grp";
+ function = "ca_spi";
+ };
+ };
+
+ ca_trb_pmx: ca_trb@0 {
+ ca_trb {
+ groups = "ca_trb_grp";
+ function = "ca_trb";
+ };
+ };
+
+ ca_uart_debug_pmx: ca_uart_debug@0 {
+ ca_uart_debug {
+ groups = "ca_uart_debug_grp";
+ function = "ca_uart_debug";
+ };
+ };
+
+ clkc_pmx0: clkc@0 {
+ clkc_0 {
+ groups = "clkc_grp0";
+ function = "clkc_m0";
+ };
+ };
+
+ clkc_pmx1: clkc@1 {
+ clkc_1 {
+ groups = "clkc_grp1";
+ function = "clkc_m1";
+ };
+ };
+
+ gn_gnss_i2c_pmx: gn_gnss_i2c@0 {
+ gn_gnss_i2c {
+ groups = "gn_gnss_i2c_grp";
+ function = "gn_gnss_i2c";
+ };
+ };
+
+ gn_gnss_uart_nopause_pmx: gn_gnss_uart_nopause@0 {
+ gn_gnss_uart_nopause {
+ groups = "gn_gnss_uart_nopause_grp";
+ function = "gn_gnss_uart_nopause";
+ };
+ };
+
+ gn_gnss_uart_pmx: gn_gnss_uart@0 {
+ gn_gnss_uart {
+ groups = "gn_gnss_uart_grp";
+ function = "gn_gnss_uart";
+ };
+ };
+
+ gn_trg_spi_pmx0: gn_trg_spi@0 {
+ gn_trg_spi_0 {
+ groups = "gn_trg_spi_grp0";
+ function = "gn_trg_spi_m0";
+ };
+ };
+
+ gn_trg_spi_pmx1: gn_trg_spi@1 {
+ gn_trg_spi_1 {
+ groups = "gn_trg_spi_grp1";
+ function = "gn_trg_spi_m1";
+ };
+ };
+
+ cvbs_dbg_pmx: cvbs_dbg@0 {
+ cvbs_dbg {
+ groups = "cvbs_dbg_grp";
+ function = "cvbs_dbg";
+ };
+ };
+
+ cvbs_dbg_test_pmx0: cvbs_dbg_test@0 {
+ cvbs_dbg_test_0 {
+ groups = "cvbs_dbg_test_grp0";
+ function = "cvbs_dbg_test_m0";
+ };
+ };
+
+ cvbs_dbg_test_pmx1: cvbs_dbg_test@1 {
+ cvbs_dbg_test_1 {
+ groups = "cvbs_dbg_test_grp1";
+ function = "cvbs_dbg_test_m1";
+ };
+ };
+
+ cvbs_dbg_test_pmx2: cvbs_dbg_test@2 {
+ cvbs_dbg_test_2 {
+ groups = "cvbs_dbg_test_grp2";
+ function = "cvbs_dbg_test_m2";
+ };
+ };
+
+ cvbs_dbg_test_pmx3: cvbs_dbg_test@3 {
+ cvbs_dbg_test_3 {
+ groups = "cvbs_dbg_test_grp3";
+ function = "cvbs_dbg_test_m3";
+ };
+ };
+
+ cvbs_dbg_test_pmx4: cvbs_dbg_test@4 {
+ cvbs_dbg_test_4 {
+ groups = "cvbs_dbg_test_grp4";
+ function = "cvbs_dbg_test_m4";
+ };
+ };
+
+ cvbs_dbg_test_pmx5: cvbs_dbg_test@5 {
+ cvbs_dbg_test_5 {
+ groups = "cvbs_dbg_test_grp5";
+ function = "cvbs_dbg_test_m5";
+ };
+ };
+
+ cvbs_dbg_test_pmx6: cvbs_dbg_test@6 {
+ cvbs_dbg_test_6 {
+ groups = "cvbs_dbg_test_grp6";
+ function = "cvbs_dbg_test_m6";
+ };
+ };
+
+ cvbs_dbg_test_pmx7: cvbs_dbg_test@7 {
+ cvbs_dbg_test_7 {
+ groups = "cvbs_dbg_test_grp7";
+ function = "cvbs_dbg_test_m7";
+ };
+ };
+
+ cvbs_dbg_test_pmx8: cvbs_dbg_test@8 {
+ cvbs_dbg_test_8 {
+ groups = "cvbs_dbg_test_grp8";
+ function = "cvbs_dbg_test_m8";
+ };
+ };
+
+ cvbs_dbg_test_pmx9: cvbs_dbg_test@9 {
+ cvbs_dbg_test_9 {
+ groups = "cvbs_dbg_test_grp9";
+ function = "cvbs_dbg_test_m9";
+ };
+ };
+
+ cvbs_dbg_test_pmx10: cvbs_dbg_test@10 {
+ cvbs_dbg_test_10 {
+ groups = "cvbs_dbg_test_grp10";
+ function = "cvbs_dbg_test_m10";
+ };
+ };
+
+ cvbs_dbg_test_pmx11: cvbs_dbg_test@11 {
+ cvbs_dbg_test_11 {
+ groups = "cvbs_dbg_test_grp11";
+ function = "cvbs_dbg_test_m11";
+ };
+ };
+
+ cvbs_dbg_test_pmx12: cvbs_dbg_test@12 {
+ cvbs_dbg_test_12 {
+ groups = "cvbs_dbg_test_grp12";
+ function = "cvbs_dbg_test_m12";
+ };
+ };
+
+ cvbs_dbg_test_pmx13: cvbs_dbg_test@13 {
+ cvbs_dbg_test_13 {
+ groups = "cvbs_dbg_test_grp13";
+ function = "cvbs_dbg_test_m13";
+ };
+ };
+
+ cvbs_dbg_test_pmx14: cvbs_dbg_test@14 {
+ cvbs_dbg_test_14 {
+ groups = "cvbs_dbg_test_grp14";
+ function = "cvbs_dbg_test_m14";
+ };
+ };
+
+ cvbs_dbg_test_pmx15: cvbs_dbg_test@15 {
+ cvbs_dbg_test_15 {
+ groups = "cvbs_dbg_test_grp15";
+ function = "cvbs_dbg_test_m15";
+ };
+ };
+
+ gn_gnss_power_pmx: gn_gnss_power@0 {
+ gn_gnss_power {
+ groups = "gn_gnss_power_grp";
+ function = "gn_gnss_power";
+ };
+ };
+
+ gn_gnss_sw_status_pmx: gn_gnss_sw_status@0 {
+ gn_gnss_sw_status {
+ groups = "gn_gnss_sw_status_grp";
+ function = "gn_gnss_sw_status";
+ };
+ };
+
+ gn_gnss_eclk_pmx: gn_gnss_eclk@0 {
+ gn_gnss_eclk {
+ groups = "gn_gnss_eclk_grp";
+ function = "gn_gnss_eclk";
+ };
+ };
+
+ gn_gnss_irq1_pmx0: gn_gnss_irq1@0 {
+ gn_gnss_irq1_0 {
+ groups = "gn_gnss_irq1_grp0";
+ function = "gn_gnss_irq1_m0";
+ };
+ };
+
+ gn_gnss_irq2_pmx0: gn_gnss_irq2@0 {
+ gn_gnss_irq2_0 {
+ groups = "gn_gnss_irq2_grp0";
+ function = "gn_gnss_irq2_m0";
+ };
+ };
+
+ gn_gnss_tm_pmx: gn_gnss_tm@0 {
+ gn_gnss_tm {
+ groups = "gn_gnss_tm_grp";
+ function = "gn_gnss_tm";
+ };
+ };
+
+ gn_gnss_tsync_pmx: gn_gnss_tsync@0 {
+ gn_gnss_tsync {
+ groups = "gn_gnss_tsync_grp";
+ function = "gn_gnss_tsync";
+ };
+ };
+
+ gn_io_gnsssys_sw_cfg_pmx: gn_io_gnsssys_sw_cfg@0 {
+ gn_io_gnsssys_sw_cfg {
+ groups = "gn_io_gnsssys_sw_cfg_grp";
+ function = "gn_io_gnsssys_sw_cfg";
+ };
+ };
+
+ gn_trg_pmx0: gn_trg@0 {
+ gn_trg_0 {
+ groups = "gn_trg_grp0";
+ function = "gn_trg_m0";
+ };
+ };
+
+ gn_trg_pmx1: gn_trg@1 {
+ gn_trg_1 {
+ groups = "gn_trg_grp1";
+ function = "gn_trg_m1";
+ };
+ };
+
+ gn_trg_shutdown_pmx0: gn_trg_shutdown@0 {
+ gn_trg_shutdown_0 {
+ groups = "gn_trg_shutdown_grp0";
+ function = "gn_trg_shutdown_m0";
+ };
+ };
+
+ gn_trg_shutdown_pmx1: gn_trg_shutdown@1 {
+ gn_trg_shutdown_1 {
+ groups = "gn_trg_shutdown_grp1";
+ function = "gn_trg_shutdown_m1";
+ };
+ };
+
+ gn_trg_shutdown_pmx2: gn_trg_shutdown@2 {
+ gn_trg_shutdown_2 {
+ groups = "gn_trg_shutdown_grp2";
+ function = "gn_trg_shutdown_m2";
+ };
+ };
+
+ gn_trg_shutdown_pmx3: gn_trg_shutdown@3 {
+ gn_trg_shutdown_3 {
+ groups = "gn_trg_shutdown_grp3";
+ function = "gn_trg_shutdown_m3";
+ };
+ };
+
+ i2c0_pmx: i2c0@0 {
+ i2c0 {
+ groups = "i2c0_grp";
+ function = "i2c0";
+ };
+ };
+
+ i2c1_pmx: i2c1@0 {
+ i2c1 {
+ groups = "i2c1_grp";
+ function = "i2c1";
+ };
+ };
+
+ jtag_pmx0: jtag@0 {
+ jtag_0 {
+ groups = "jtag_grp0";
+ function = "jtag_m0";
+ };
+ };
+
+ ks_kas_spi_pmx0: ks_kas_spi@0 {
+ ks_kas_spi_0 {
+ groups = "ks_kas_spi_grp0";
+ function = "ks_kas_spi_m0";
+ };
+ };
+
+ ld_ldd_pmx: ld_ldd@0 {
+ ld_ldd {
+ groups = "ld_ldd_grp";
+ function = "ld_ldd";
+ };
+ };
+
+ ld_ldd_16bit_pmx: ld_ldd_16bit@0 {
+ ld_ldd_16bit {
+ groups = "ld_ldd_16bit_grp";
+ function = "ld_ldd_16bit";
+ };
+ };
+
+ ld_ldd_fck_pmx: ld_ldd_fck@0 {
+ ld_ldd_fck {
+ groups = "ld_ldd_fck_grp";
+ function = "ld_ldd_fck";
+ };
+ };
+
+ ld_ldd_lck_pmx: ld_ldd_lck@0 {
+ ld_ldd_lck {
+ groups = "ld_ldd_lck_grp";
+ function = "ld_ldd_lck";
+ };
+ };
+
+ lr_lcdrom_pmx: lr_lcdrom@0 {
+ lr_lcdrom {
+ groups = "lr_lcdrom_grp";
+ function = "lr_lcdrom";
+ };
+ };
+
+ lvds_analog_pmx: lvds_analog@0 {
+ lvds_analog {
+ groups = "lvds_analog_grp";
+ function = "lvds_analog";
+ };
+ };
+
+ nd_df_pmx: nd_df@0 {
+ nd_df {
+ groups = "nd_df_grp";
+ function = "nd_df";
+ };
+ };
+
+ nd_df_nowp_pmx: nd_df_nowp@0 {
+ nd_df_nowp {
+ groups = "nd_df_nowp_grp";
+ function = "nd_df_nowp";
+ };
+ };
+
+ ps_pmx: ps@0 {
+ ps {
+ groups = "ps_grp";
+ function = "ps";
+ };
+ };
+
+ pwc_core_on_pmx: pwc_core_on@0 {
+ pwc_core_on {
+ groups = "pwc_core_on_grp";
+ function = "pwc_core_on";
+ };
+ };
+
+ pwc_ext_on_pmx: pwc_ext_on@0 {
+ pwc_ext_on {
+ groups = "pwc_ext_on_grp";
+ function = "pwc_ext_on";
+ };
+ };
+
+ pwc_gpio3_clk_pmx: pwc_gpio3_clk@0 {
+ pwc_gpio3_clk {
+ groups = "pwc_gpio3_clk_grp";
+ function = "pwc_gpio3_clk";
+ };
+ };
+
+ pwc_io_on_pmx: pwc_io_on@0 {
+ pwc_io_on {
+ groups = "pwc_io_on_grp";
+ function = "pwc_io_on";
+ };
+ };
+
+ pwc_lowbatt_b_pmx0: pwc_lowbatt_b@0 {
+ pwc_lowbatt_b_0 {
+ groups = "pwc_lowbatt_b_grp0";
+ function = "pwc_lowbatt_b_m0";
+ };
+ };
+
+ pwc_mem_on_pmx: pwc_mem_on@0 {
+ pwc_mem_on {
+ groups = "pwc_mem_on_grp";
+ function = "pwc_mem_on";
+ };
+ };
+
+ pwc_on_key_b_pmx0: pwc_on_key_b@0 {
+ pwc_on_key_b_0 {
+ groups = "pwc_on_key_b_grp0";
+ function = "pwc_on_key_b_m0";
+ };
+ };
+
+ pwc_wakeup_src0_pmx: pwc_wakeup_src0@0 {
+ pwc_wakeup_src0 {
+ groups = "pwc_wakeup_src0_grp";
+ function = "pwc_wakeup_src0";
+ };
+ };
+
+ pwc_wakeup_src1_pmx: pwc_wakeup_src1@0 {
+ pwc_wakeup_src1 {
+ groups = "pwc_wakeup_src1_grp";
+ function = "pwc_wakeup_src1";
+ };
+ };
+
+ pwc_wakeup_src2_pmx: pwc_wakeup_src2@0 {
+ pwc_wakeup_src2 {
+ groups = "pwc_wakeup_src2_grp";
+ function = "pwc_wakeup_src2";
+ };
+ };
+
+ pwc_wakeup_src3_pmx: pwc_wakeup_src3@0 {
+ pwc_wakeup_src3 {
+ groups = "pwc_wakeup_src3_grp";
+ function = "pwc_wakeup_src3";
+ };
+ };
+
+ pw_cko0_pmx0: pw_cko0@0 {
+ pw_cko0_0 {
+ groups = "pw_cko0_grp0";
+ function = "pw_cko0_m0";
+ };
+ };
+
+ pw_cko0_pmx1: pw_cko0@1 {
+ pw_cko0_1 {
+ groups = "pw_cko0_grp1";
+ function = "pw_cko0_m1";
+ };
+ };
+
+ pw_cko0_pmx2: pw_cko0@2 {
+ pw_cko0_2 {
+ groups = "pw_cko0_grp2";
+ function = "pw_cko0_m2";
+ };
+ };
+
+ pw_cko1_pmx0: pw_cko1@0 {
+ pw_cko1_0 {
+ groups = "pw_cko1_grp0";
+ function = "pw_cko1_m0";
+ };
+ };
+
+ pw_cko1_pmx1: pw_cko1@1 {
+ pw_cko1_1 {
+ groups = "pw_cko1_grp1";
+ function = "pw_cko1_m1";
+ };
+ };
+
+ pw_i2s01_clk_pmx0: pw_i2s01_clk@0 {
+ pw_i2s01_clk_0 {
+ groups = "pw_i2s01_clk_grp0";
+ function = "pw_i2s01_clk_m0";
+ };
+ };
+
+ pw_i2s01_clk_pmx1: pw_i2s01_clk@1 {
+ pw_i2s01_clk_1 {
+ groups = "pw_i2s01_clk_grp1";
+ function = "pw_i2s01_clk_m1";
+ };
+ };
+
+ pw_pwm0_pmx: pw_pwm0@0 {
+ pw_pwm0 {
+ groups = "pw_pwm0_grp";
+ function = "pw_pwm0";
+ };
+ };
+
+ pw_pwm1_pmx: pw_pwm1@0 {
+ pw_pwm1 {
+ groups = "pw_pwm1_grp";
+ function = "pw_pwm1";
+ };
+ };
+
+ pw_pwm2_pmx0: pw_pwm2@0 {
+ pw_pwm2_0 {
+ groups = "pw_pwm2_grp0";
+ function = "pw_pwm2_m0";
+ };
+ };
+
+ pw_pwm2_pmx1: pw_pwm2@1 {
+ pw_pwm2_1 {
+ groups = "pw_pwm2_grp1";
+ function = "pw_pwm2_m1";
+ };
+ };
+
+ pw_pwm3_pmx0: pw_pwm3@0 {
+ pw_pwm3_0 {
+ groups = "pw_pwm3_grp0";
+ function = "pw_pwm3_m0";
+ };
+ };
+
+ pw_pwm3_pmx1: pw_pwm3@1 {
+ pw_pwm3_1 {
+ groups = "pw_pwm3_grp1";
+ function = "pw_pwm3_m1";
+ };
+ };
+
+ pw_pwm_cpu_vol_pmx0: pw_pwm_cpu_vol@0 {
+ pw_pwm_cpu_vol_0 {
+ groups = "pw_pwm_cpu_vol_grp0";
+ function = "pw_pwm_cpu_vol_m0";
+ };
+ };
+
+ pw_pwm_cpu_vol_pmx1: pw_pwm_cpu_vol@1 {
+ pw_pwm_cpu_vol_1 {
+ groups = "pw_pwm_cpu_vol_grp1";
+ function = "pw_pwm_cpu_vol_m1";
+ };
+ };
+
+ pw_backlight_pmx0: pw_backlight@0 {
+ pw_backlight_0 {
+ groups = "pw_backlight_grp0";
+ function = "pw_backlight_m0";
+ };
+ };
+
+ pw_backlight_pmx1: pw_backlight@1 {
+ pw_backlight_1 {
+ groups = "pw_backlight_grp1";
+ function = "pw_backlight_m1";
+ };
+ };
+
+ rg_eth_mac_pmx: rg_eth_mac@0 {
+ rg_eth_mac {
+ groups = "rg_eth_mac_grp";
+ function = "rg_eth_mac";
+ };
+ };
+
+ rg_gmac_phy_intr_n_pmx: rg_gmac_phy_intr_n@0 {
+ rg_gmac_phy_intr_n {
+ groups = "rg_gmac_phy_intr_n_grp";
+ function = "rg_gmac_phy_intr_n";
+ };
+ };
+
+ rg_rgmii_mac_pmx: rg_rgmii_mac@0 {
+ rg_rgmii_mac {
+ groups = "rg_rgmii_mac_grp";
+ function = "rg_rgmii_mac";
+ };
+ };
+
+ rg_rgmii_phy_ref_clk_pmx0: rg_rgmii_phy_ref_clk@0 {
+ rg_rgmii_phy_ref_clk_0 {
+ groups =
+ "rg_rgmii_phy_ref_clk_grp0";
+ function =
+ "rg_rgmii_phy_ref_clk_m0";
+ };
+ };
+
+ rg_rgmii_phy_ref_clk_pmx1: rg_rgmii_phy_ref_clk@1 {
+ rg_rgmii_phy_ref_clk_1 {
+ groups =
+ "rg_rgmii_phy_ref_clk_grp1";
+ function =
+ "rg_rgmii_phy_ref_clk_m1";
+ };
+ };
+
+ sd0_pmx: sd0@0 {
+ sd0 {
+ groups = "sd0_grp";
+ function = "sd0";
+ };
+ };
+
+ sd0_4bit_pmx: sd0_4bit@0 {
+ sd0_4bit {
+ groups = "sd0_4bit_grp";
+ function = "sd0_4bit";
+ };
+ };
+
+ sd1_pmx: sd1@0 {
+ sd1 {
+ groups = "sd1_grp";
+ function = "sd1";
+ };
+ };
+
+ sd1_4bit_pmx0: sd1_4bit@0 {
+ sd1_4bit_0 {
+ groups = "sd1_4bit_grp0";
+ function = "sd1_4bit_m0";
+ };
+ };
+
+ sd1_4bit_pmx1: sd1_4bit@1 {
+ sd1_4bit_1 {
+ groups = "sd1_4bit_grp1";
+ function = "sd1_4bit_m1";
+ };
+ };
+
+ sd2_pmx0: sd2@0 {
+ sd2_0 {
+ groups = "sd2_grp0";
+ function = "sd2_m0";
+ };
+ };
+
+ sd2_no_cdb_pmx0: sd2_no_cdb@0 {
+ sd2_no_cdb_0 {
+ groups = "sd2_no_cdb_grp0";
+ function = "sd2_no_cdb_m0";
+ };
+ };
+
+ sd3_pmx: sd3@0 {
+ sd3 {
+ groups = "sd3_grp";
+ function = "sd3";
+ };
+ };
+
+ sd5_pmx: sd5@0 {
+ sd5 {
+ groups = "sd5_grp";
+ function = "sd5";
+ };
+ };
+
+ sd6_pmx0: sd6@0 {
+ sd6_0 {
+ groups = "sd6_grp0";
+ function = "sd6_m0";
+ };
+ };
+
+ sd6_pmx1: sd6@1 {
+ sd6_1 {
+ groups = "sd6_grp1";
+ function = "sd6_m1";
+ };
+ };
+
+ sp0_ext_ldo_on_pmx: sp0_ext_ldo_on@0 {
+ sp0_ext_ldo_on {
+ groups = "sp0_ext_ldo_on_grp";
+ function = "sp0_ext_ldo_on";
+ };
+ };
+
+ sp0_qspi_pmx: sp0_qspi@0 {
+ sp0_qspi {
+ groups = "sp0_qspi_grp";
+ function = "sp0_qspi";
+ };
+ };
+
+ sp1_spi_pmx: sp1_spi@0 {
+ sp1_spi {
+ groups = "sp1_spi_grp";
+ function = "sp1_spi";
+ };
+ };
+
+ tpiu_trace_pmx: tpiu_trace@0 {
+ tpiu_trace {
+ groups = "tpiu_trace_grp";
+ function = "tpiu_trace";
+ };
+ };
+
+ uart0_pmx: uart0@0 {
+ uart0 {
+ groups = "uart0_grp";
+ function = "uart0";
+ };
+ };
+
+ uart0_nopause_pmx: uart0_nopause@0 {
+ uart0_nopause {
+ groups = "uart0_nopause_grp";
+ function = "uart0_nopause";
+ };
+ };
+
+ uart1_pmx: uart1@0 {
+ uart1 {
+ groups = "uart1_grp";
+ function = "uart1";
+ };
+ };
+
+ uart2_pmx: uart2@0 {
+ uart2 {
+ groups = "uart2_grp";
+ function = "uart2";
+ };
+ };
+
+ uart3_pmx0: uart3@0 {
+ uart3_0 {
+ groups = "uart3_grp0";
+ function = "uart3_m0";
+ };
+ };
+
+ uart3_pmx1: uart3@1 {
+ uart3_1 {
+ groups = "uart3_grp1";
+ function = "uart3_m1";
+ };
+ };
+
+ uart3_pmx2: uart3@2 {
+ uart3_2 {
+ groups = "uart3_grp2";
+ function = "uart3_m2";
+ };
+ };
+
+ uart3_pmx3: uart3@3 {
+ uart3_3 {
+ groups = "uart3_grp3";
+ function = "uart3_m3";
+ };
+ };
+
+ uart3_nopause_pmx0: uart3_nopause@0 {
+ uart3_nopause_0 {
+ groups = "uart3_nopause_grp0";
+ function = "uart3_nopause_m0";
+ };
+ };
+
+ uart3_nopause_pmx1: uart3_nopause@1 {
+ uart3_nopause_1 {
+ groups = "uart3_nopause_grp1";
+ function = "uart3_nopause_m1";
+ };
+ };
+
+ uart4_pmx0: uart4@0 {
+ uart4_0 {
+ groups = "uart4_grp0";
+ function = "uart4_m0";
+ };
+ };
+
+ uart4_pmx1: uart4@1 {
+ uart4_1 {
+ groups = "uart4_grp1";
+ function = "uart4_m1";
+ };
+ };
+
+ uart4_pmx2: uart4@2 {
+ uart4_2 {
+ groups = "uart4_grp2";
+ function = "uart4_m2";
+ };
+ };
+
+ uart4_nopause_pmx: uart4_nopause@0 {
+ uart4_nopause {
+ groups = "uart4_nopause_grp";
+ function = "uart4_nopause";
+ };
+ };
+
+ usb0_drvvbus_pmx: usb0_drvvbus@0 {
+ usb0_drvvbus {
+ groups = "usb0_drvvbus_grp";
+ function = "usb0_drvvbus";
+ };
+ };
+
+ usb1_drvvbus_pmx: usb1_drvvbus@0 {
+ usb1_drvvbus {
+ groups = "usb1_drvvbus_grp";
+ function = "usb1_drvvbus";
+ };
+ };
+
+ visbus_dout_pmx: visbus_dout@0 {
+ visbus_dout {
+ groups = "visbus_dout_grp";
+ function = "visbus_dout";
+ };
+ };
+
+ vi_vip1_pmx: vi_vip1@0 {
+ vi_vip1 {
+ groups = "vi_vip1_grp";
+ function = "vi_vip1";
+ };
+ };
+
+ vi_vip1_ext_pmx: vi_vip1_ext@0 {
+ vi_vip1_ext {
+ groups = "vi_vip1_ext_grp";
+ function = "vi_vip1_ext";
+ };
+ };
+
+ vi_vip1_low8bit_pmx: vi_vip1_low8bit@0 {
+ vi_vip1_low8bit {
+ groups = "vi_vip1_low8bit_grp";
+ function = "vi_vip1_low8bit";
+ };
+ };
+
+ vi_vip1_high8bit_pmx: vi_vip1_high8bit@0 {
+ vi_vip1_high8bit {
+ groups = "vi_vip1_high8bit_grp";
+ function = "vi_vip1_high8bit";
+ };
+ };
};
pmipc {
clock-names = "gpio0_io";
gpio-controller;
interrupt-controller;
+
+ gpio-banks = <2>;
+ gpio-ranges = <&pinctrl 0 0 0>,
+ <&pinctrl 32 0 0>;
+ gpio-ranges-group-names = "lvds_gpio_grp",
+ "uart_nand_gpio_grp";
};
nand@17050000 {
#interrupt-cells = <2>;
compatible = "sirf,atlas7-gpio";
reg = <0x13300000 0x1000>;
- interrupts = <0 43 0>, <0 44 0>, <0 45 0>;
+ interrupts = <0 43 0>, <0 44 0>,
+ <0 45 0>, <0 46 0>;
clocks = <&car 84>;
clock-names = "gpio1_io";
gpio-controller;
interrupt-controller;
+
+ gpio-banks = <4>;
+ gpio-ranges = <&pinctrl 0 0 0>,
+ <&pinctrl 32 0 0>,
+ <&pinctrl 64 0 0>,
+ <&pinctrl 96 0 0>;
+ gpio-ranges-group-names = "gnss_gpio_grp",
+ "lcd_vip_gpio_grp",
+ "sdio_i2s_gpio_grp",
+ "sp_rgmii_gpio_grp";
};
sd2: sdhci@14200000 {
interrupts = <0 47 0>;
gpio-controller;
interrupt-controller;
+
+ gpio-banks = <1>;
+ gpio-ranges = <&pinctrl 0 0 0>;
+ gpio-ranges-group-names = "rtc_gpio_grp";
};
rtc-iobg@18840000 {
interface-type = "ace";
reg = <0x5000 0x1000>;
};
+
+ pmu@9000 {
+ compatible = "arm,cci-400-pmu,r0";
+ reg = <0x9000 0x5000>;
+ interrupts = <0 105 4>,
+ <0 101 4>,
+ <0 102 4>,
+ <0 103 4>,
+ <0 104 4>;
+ };
};
memory-controller@7ffd0000 {
<1 10 0xf08>;
};
- pmu {
+ pmu_a15 {
compatible = "arm,cortex-a15-pmu";
interrupts = <0 68 4>,
<0 69 4>;
- interrupt-affinity = <&cpu0>, <&cpu1>;
+ interrupt-affinity = <&cpu0>,
+ <&cpu1>;
+ };
+
+ pmu_a7 {
+ compatible = "arm,cortex-a7-pmu";
+ interrupts = <0 128 4>,
+ <0 129 4>,
+ <0 130 4>;
+ interrupt-affinity = <&cpu2>,
+ <&cpu3>,
+ <&cpu4>;
};
oscclk6a: oscclk6a {
CONFIG_POWER_RESET_GPIO=y
CONFIG_POWER_RESET_GPIO_RESTART=y
CONFIG_POWER_RESET_KEYSTONE=y
-CONFIG_POWER_RESET_SUN6I=y
CONFIG_POWER_RESET_RMOBILE=y
CONFIG_SENSORS_LM90=y
CONFIG_SENSORS_LM95245=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_PERF_EVENTS=y
+CONFIG_MODULES=y
CONFIG_ARCH_SUNXI=y
CONFIG_SMP=y
CONFIG_NR_CPUS=8
CONFIG_GPIO_SYSFS=y
CONFIG_POWER_SUPPLY=y
CONFIG_POWER_RESET=y
-CONFIG_POWER_RESET_SUN6I=y
CONFIG_THERMAL=y
CONFIG_CPU_THERMAL=y
CONFIG_WATCHDOG=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_AXP20X=y
CONFIG_REGULATOR_GPIO=y
+CONFIG_FB=y
+CONFIG_FB_SIMPLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_HCD_PLATFORM=y
u8 revision = dma_read(REVISION, 0) & 0xff;
printk(KERN_INFO "OMAP DMA hardware revision %d.%d\n",
revision >> 4, revision & 0xf);
- return;
}
static unsigned configure_dma_errata(void)
select ARCH_REQUIRE_GPIOLIB
select GENERIC_IRQ_CHIP
select NO_IOPORT_MAP
+ select REGMAP
select PINCTRL
select PINCTRL_SIRF
help
/*
- * RTC I/O Bridge interfaces for CSR SiRFprimaII
+ * RTC I/O Bridge interfaces for CSR SiRFprimaII/atlas7
* ARM access the registers of SYSRTC, GPSRTC and PWRC through this module
*
* Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/io.h>
+#include <linux/regmap.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
{
unsigned long flags, val;
+ /* TODO: add hwspinlock to sync with M3 */
spin_lock_irqsave(&rtciobrg_lock, flags);
val = __sirfsoc_rtc_iobrg_readl(addr);
{
unsigned long flags;
+ /* TODO: add hwspinlock to sync with M3 */
spin_lock_irqsave(&rtciobrg_lock, flags);
sirfsoc_rtc_iobrg_pre_writel(val, addr);
}
EXPORT_SYMBOL_GPL(sirfsoc_rtc_iobrg_writel);
+
+static int regmap_iobg_regwrite(void *context, unsigned int reg,
+ unsigned int val)
+{
+ sirfsoc_rtc_iobrg_writel(val, reg);
+ return 0;
+}
+
+static int regmap_iobg_regread(void *context, unsigned int reg,
+ unsigned int *val)
+{
+ *val = (u32)sirfsoc_rtc_iobrg_readl(reg);
+ return 0;
+}
+
+static struct regmap_bus regmap_iobg = {
+ .reg_write = regmap_iobg_regwrite,
+ .reg_read = regmap_iobg_regread,
+};
+
+/**
+ * devm_regmap_init_iobg(): Initialise managed register map
+ *
+ * @iobg: Device that will be interacted with
+ * @config: Configuration for register map
+ *
+ * The return value will be an ERR_PTR() on error or a valid pointer
+ * to a struct regmap. The regmap will be automatically freed by the
+ * device management code.
+ */
+struct regmap *devm_regmap_init_iobg(struct device *dev,
+ const struct regmap_config *config)
+{
+ const struct regmap_bus *bus = ®map_iobg;
+
+ return devm_regmap_init(dev, bus, dev, config);
+}
+EXPORT_SYMBOL_GPL(devm_regmap_init_iobg);
+
static const struct of_device_id rtciobrg_ids[] = {
{ .compatible = "sirf,prima2-rtciobg" },
{}
}
postcore_initcall(sirfsoc_rtciobrg_init);
-MODULE_AUTHOR("Zhiwu Song <zhiwu.song@csr.com>, "
- "Barry Song <baohua.song@csr.com>");
+MODULE_AUTHOR("Zhiwu Song <zhiwu.song@csr.com>");
+MODULE_AUTHOR("Barry Song <baohua.song@csr.com>");
MODULE_DESCRIPTION("CSR SiRFprimaII rtc io bridge");
MODULE_LICENSE("GPL v2");
select SUN5I_HSTIMER
config MACH_SUN8I
- bool "Allwinner A23 (sun8i) SoCs support"
+ bool "Allwinner sun8i Family SoCs support"
default ARCH_SUNXI
select ARM_GIC
select MFD_SUN6I_PRCM
static const char * const sun8i_board_dt_compat[] = {
"allwinner,sun8i-a23",
+ "allwinner,sun8i-a33",
+ "allwinner,sun8i-h3",
NULL,
};
-DT_MACHINE_START(SUN8I_DT, "Allwinner sun8i (A23) Family")
+DT_MACHINE_START(SUN8I_DT, "Allwinner sun8i Family")
+ .init_time = sun6i_timer_init,
.dt_compat = sun8i_board_dt_compat,
.init_late = sunxi_dt_cpufreq_init,
MACHINE_END
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS
select COMMON_CLK
- select EDAC_SUPPORT
select CPU_PM if (SUSPEND || CPU_IDLE)
select DCACHE_WORD_ACCESS
+ select EDAC_SUPPORT
select GENERIC_ALLOCATOR
select GENERIC_CLOCKEVENTS
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
device_type = "memory";
reg = < 0x1 0x00000000 0x0 0x80000000 >; /* Updated by bootloader */
};
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ button@1 {
+ label = "POWER";
+ linux,code = <116>;
+ linux,input-type = <0x1>;
+ interrupts = <0x0 0x2d 0x1>;
+ };
+ };
};
&pcie0clk {
dtb-$(CONFIG_ARCH_VEXPRESS) += foundation-v8.dtb
dtb-$(CONFIG_ARCH_VEXPRESS) += juno.dtb juno-r1.dtb
dtb-$(CONFIG_ARCH_VEXPRESS) += rtsm_ve-aemv8a.dtb
+dtb-$(CONFIG_ARCH_VEXPRESS) += vexpress-v2f-1xv7-ca53x2.dtb
always := $(dtb-y)
subdir-y := $(dts-dirs)
--- /dev/null
+/*
+ * ARM Ltd. Versatile Express
+ *
+ * LogicTile Express 20MG
+ * V2F-1XV7
+ *
+ * Cortex-A53 (2 cores) Soft Macrocell Model
+ *
+ * HBI-0247C
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ model = "V2F-1XV7 Cortex-A53x2 SMM";
+ arm,hbi = <0x247>;
+ arm,vexpress,site = <0xf>;
+ compatible = "arm,vexpress,v2f-1xv7,ca53x2", "arm,vexpress,v2f-1xv7", "arm,vexpress";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ chosen {
+ stdout-path = "serial0:38400n8";
+ };
+
+ aliases {
+ serial0 = &v2m_serial0;
+ serial1 = &v2m_serial1;
+ serial2 = &v2m_serial2;
+ serial3 = &v2m_serial3;
+ i2c0 = &v2m_i2c_dvi;
+ i2c1 = &v2m_i2c_pcie;
+ };
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0 0>;
+ next-level-cache = <&L2_0>;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0 1>;
+ next-level-cache = <&L2_0>;
+ };
+
+ L2_0: l2-cache0 {
+ compatible = "cache";
+ };
+ };
+
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0 0x80000000 0 0x80000000>; /* 2GB @ 2GB */
+ };
+
+ gic: interrupt-controller@2c001000 {
+ compatible = "arm,gic-400";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ reg = <0 0x2c001000 0 0x1000>,
+ <0 0x2c002000 0 0x2000>,
+ <0 0x2c004000 0 0x2000>,
+ <0 0x2c006000 0 0x2000>;
+ interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ pmu {
+ compatible = "arm,armv8-pmuv3";
+ interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ dcc {
+ compatible = "arm,vexpress,config-bus";
+ arm,vexpress,config-bridge = <&v2m_sysreg>;
+
+ smbclk: osc@4 {
+ /* SMC clock */
+ compatible = "arm,vexpress-osc";
+ arm,vexpress-sysreg,func = <1 4>;
+ freq-range = <40000000 40000000>;
+ #clock-cells = <0>;
+ clock-output-names = "smclk";
+ };
+
+ volt@0 {
+ /* VIO to expansion board above */
+ compatible = "arm,vexpress-volt";
+ arm,vexpress-sysreg,func = <2 0>;
+ regulator-name = "VIO_UP";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ volt@1 {
+ /* 12V from power connector J6 */
+ compatible = "arm,vexpress-volt";
+ arm,vexpress-sysreg,func = <2 1>;
+ regulator-name = "12";
+ regulator-always-on;
+ };
+
+ temp@0 {
+ /* FPGA temperature */
+ compatible = "arm,vexpress-temp";
+ arm,vexpress-sysreg,func = <4 0>;
+ label = "FPGA";
+ };
+ };
+
+ smb {
+ compatible = "simple-bus";
+
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges = <0 0 0 0x08000000 0x04000000>,
+ <1 0 0 0x14000000 0x04000000>,
+ <2 0 0 0x18000000 0x04000000>,
+ <3 0 0 0x1c000000 0x04000000>,
+ <4 0 0 0x0c000000 0x04000000>,
+ <5 0 0 0x10000000 0x04000000>;
+
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 63>;
+ interrupt-map = <0 0 0 &gic GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 1 &gic GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 2 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 3 &gic GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 4 &gic GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 5 &gic GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 6 &gic GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 7 &gic GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 8 &gic GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 9 &gic GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 10 &gic GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 11 &gic GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 12 &gic GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 13 &gic GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 14 &gic GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 15 &gic GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 16 &gic GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 17 &gic GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 18 &gic GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 19 &gic GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 20 &gic GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 21 &gic GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 22 &gic GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 23 &gic GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 24 &gic GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 25 &gic GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 26 &gic GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 27 &gic GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 28 &gic GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 29 &gic GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 30 &gic GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 31 &gic GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 32 &gic GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 33 &gic GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 34 &gic GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 35 &gic GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 36 &gic GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 37 &gic GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 38 &gic GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 39 &gic GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 40 &gic GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 41 &gic GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 42 &gic GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
+
+ /include/ "../../../../arm/boot/dts/vexpress-v2m-rs1.dtsi"
+ };
+};
gic0: interrupt-controller@8010,00000000 {
compatible = "arm,gic-v3";
#interrupt-cells = <3>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
interrupt-controller;
reg = <0x8010 0x00000000 0x0 0x010000>, /* GICD */
<0x8010 0x80000000 0x0 0x600000>; /* GICR */
interrupts = <1 9 0xf04>;
+
+ its: gic-its@8010,00020000 {
+ compatible = "arm,gic-v3-its";
+ msi-controller;
+ reg = <0x8010 0x20000 0x0 0x200000>;
+ };
};
uaa0: serial@87e0,24000000 {
CONFIG_ATA=y
CONFIG_SATA_AHCI=y
CONFIG_SATA_AHCI_PLATFORM=y
+CONFIG_AHCI_CEVA=y
CONFIG_AHCI_XGENE=y
CONFIG_PATA_PLATFORM=y
CONFIG_PATA_OF_PLATFORM=y
#include <asm/psci.h>
#include <asm/smp_plat.h>
+/* Macros for consistency checks of the GICC subtable of MADT */
+#define ACPI_MADT_GICC_LENGTH \
+ (acpi_gbl_FADT.header.revision < 6 ? 76 : 80)
+
+#define BAD_MADT_GICC_ENTRY(entry, end) \
+ (!(entry) || (unsigned long)(entry) + sizeof(*(entry)) > (end) || \
+ (entry)->header.length != ACPI_MADT_GICC_LENGTH)
+
/* Basic configuration for ACPI */
#ifdef CONFIG_ACPI
/* ACPI table mapping after acpi_gbl_permanent_mmap is set */
// TODO: add support for undefined instructions in kernel mode
enable_dbg
mov x0, sp
+ mov x2, x1
mov x1, #BAD_SYNC
- mrs x2, esr_el1
b bad_mode
ENDPROC(el1_sync)
ct_user_exit
mov x0, sp
mov x1, #BAD_SYNC
- mrs x2, esr_el1
+ mov x2, x25
bl bad_mode
b ret_to_user
ENDPROC(el0_sync)
ENTRY(compat_sys_sigreturn_wrapper)
mov x0, sp
- mov x27, #0 // prevent syscall restart handling (why)
b compat_sys_sigreturn
ENDPROC(compat_sys_sigreturn_wrapper)
ENTRY(compat_sys_rt_sigreturn_wrapper)
mov x0, sp
- mov x27, #0 // prevent syscall restart handling (why)
b compat_sys_rt_sigreturn
ENDPROC(compat_sys_rt_sigreturn_wrapper)
struct acpi_madt_generic_interrupt *processor;
processor = (struct acpi_madt_generic_interrupt *)header;
- if (BAD_MADT_ENTRY(processor, end))
+ if (BAD_MADT_GICC_ENTRY(processor, end))
return -EINVAL;
acpi_table_print_madt_entry(header);
context.o proc.o pageattr.o
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
obj-$(CONFIG_ARM64_PTDUMP) += dump.o
-
-CFLAGS_mmu.o := -I$(srctree)/scripts/dtc/libfdt/
#include <asm/processor.h>
#include <asm/cache.h>
-extern spinlock_t pa_dbit_lock;
+extern spinlock_t pa_tlb_lock;
/*
* kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
*/
#define kern_addr_valid(addr) (1)
+/* Purge data and instruction TLB entries. Must be called holding
+ * the pa_tlb_lock. The TLB purge instructions are slow on SMP
+ * machines since the purge must be broadcast to all CPUs.
+ */
+
+static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+ mtsp(mm->context, 1);
+ pdtlb(addr);
+ if (unlikely(split_tlb))
+ pitlb(addr);
+}
+
/* Certain architectures need to do special things when PTEs
* within a page table are directly modified. Thus, the following
* hook is made available.
*(pteptr) = (pteval); \
} while(0)
-extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+#define pte_inserted(x) \
+ ((pte_val(x) & (_PAGE_PRESENT|_PAGE_ACCESSED)) \
+ == (_PAGE_PRESENT|_PAGE_ACCESSED))
-#define set_pte_at(mm, addr, ptep, pteval) \
- do { \
+#define set_pte_at(mm, addr, ptep, pteval) \
+ do { \
+ pte_t old_pte; \
unsigned long flags; \
- spin_lock_irqsave(&pa_dbit_lock, flags); \
- set_pte(ptep, pteval); \
- purge_tlb_entries(mm, addr); \
- spin_unlock_irqrestore(&pa_dbit_lock, flags); \
+ spin_lock_irqsave(&pa_tlb_lock, flags); \
+ old_pte = *ptep; \
+ set_pte(ptep, pteval); \
+ if (pte_inserted(old_pte)) \
+ purge_tlb_entries(mm, addr); \
+ spin_unlock_irqrestore(&pa_tlb_lock, flags); \
} while (0)
#endif /* !__ASSEMBLY__ */
#define pte_none(x) (pte_val(x) == 0)
#define pte_present(x) (pte_val(x) & _PAGE_PRESENT)
-#define pte_clear(mm,addr,xp) do { pte_val(*(xp)) = 0; } while (0)
+#define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0))
#define pmd_flag(x) (pmd_val(x) & PxD_FLAG_MASK)
#define pmd_address(x) ((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT)
if (!pte_young(*ptep))
return 0;
- spin_lock_irqsave(&pa_dbit_lock, flags);
+ spin_lock_irqsave(&pa_tlb_lock, flags);
pte = *ptep;
if (!pte_young(pte)) {
- spin_unlock_irqrestore(&pa_dbit_lock, flags);
+ spin_unlock_irqrestore(&pa_tlb_lock, flags);
return 0;
}
set_pte(ptep, pte_mkold(pte));
purge_tlb_entries(vma->vm_mm, addr);
- spin_unlock_irqrestore(&pa_dbit_lock, flags);
+ spin_unlock_irqrestore(&pa_tlb_lock, flags);
return 1;
}
pte_t old_pte;
unsigned long flags;
- spin_lock_irqsave(&pa_dbit_lock, flags);
+ spin_lock_irqsave(&pa_tlb_lock, flags);
old_pte = *ptep;
- pte_clear(mm,addr,ptep);
- purge_tlb_entries(mm, addr);
- spin_unlock_irqrestore(&pa_dbit_lock, flags);
+ set_pte(ptep, __pte(0));
+ if (pte_inserted(old_pte))
+ purge_tlb_entries(mm, addr);
+ spin_unlock_irqrestore(&pa_tlb_lock, flags);
return old_pte;
}
static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
{
unsigned long flags;
- spin_lock_irqsave(&pa_dbit_lock, flags);
+ spin_lock_irqsave(&pa_tlb_lock, flags);
set_pte(ptep, pte_wrprotect(*ptep));
purge_tlb_entries(mm, addr);
- spin_unlock_irqrestore(&pa_dbit_lock, flags);
+ spin_unlock_irqrestore(&pa_tlb_lock, flags);
}
#define pte_same(A,B) (pte_val(A) == pte_val(B))
* active at any one time on the Merced bus. This tlb purge
* synchronisation is fairly lightweight and harmless so we activate
* it on all systems not just the N class.
+
+ * It is also used to ensure PTE updates are atomic and consistent
+ * with the TLB.
*/
extern spinlock_t pa_tlb_lock;
#define smp_flush_tlb_all() flush_tlb_all()
+int __flush_tlb_range(unsigned long sid,
+ unsigned long start, unsigned long end);
+
+#define flush_tlb_range(vma, start, end) \
+ __flush_tlb_range((vma)->vm_mm->context, start, end)
+
+#define flush_tlb_kernel_range(start, end) \
+ __flush_tlb_range(0, start, end)
+
/*
* flush_tlb_mm()
*
- * XXX This code is NOT valid for HP-UX compatibility processes,
- * (although it will probably work 99% of the time). HP-UX
- * processes are free to play with the space id's and save them
- * over long periods of time, etc. so we have to preserve the
- * space and just flush the entire tlb. We need to check the
- * personality in order to do that, but the personality is not
- * currently being set correctly.
- *
- * Of course, Linux processes could do the same thing, but
- * we don't support that (and the compilers, dynamic linker,
- * etc. do not do that).
+ * The code to switch to a new context is NOT valid for processes
+ * which play with the space id's. Thus, we have to preserve the
+ * space and just flush the entire tlb. However, the compilers,
+ * dynamic linker, etc, do not manipulate space id's, so there
+ * could be a significant performance benefit in switching contexts
+ * and not flushing the whole tlb.
*/
static inline void flush_tlb_mm(struct mm_struct *mm)
BUG_ON(mm == &init_mm); /* Should never happen */
#if 1 || defined(CONFIG_SMP)
+ /* Except for very small threads, flushing the whole TLB is
+ * faster than using __flush_tlb_range. The pdtlb and pitlb
+ * instructions are very slow because of the TLB broadcast.
+ * It might be faster to do local range flushes on all CPUs
+ * on PA 2.0 systems.
+ */
flush_tlb_all();
#else
/* FIXME: currently broken, causing space id and protection ids
- * to go out of sync, resulting in faults on userspace accesses.
+ * to go out of sync, resulting in faults on userspace accesses.
+ * This approach needs further investigation since running many
+ * small applications (e.g., GCC testsuite) is faster on HP-UX.
*/
if (mm) {
if (mm->context != 0)
{
unsigned long flags, sid;
- /* For one page, it's not worth testing the split_tlb variable */
-
- mb();
sid = vma->vm_mm->context;
purge_tlb_start(flags);
mtsp(sid, 1);
pdtlb(addr);
- pitlb(addr);
+ if (unlikely(split_tlb))
+ pitlb(addr);
purge_tlb_end(flags);
}
-
-void __flush_tlb_range(unsigned long sid,
- unsigned long start, unsigned long end);
-
-#define flush_tlb_range(vma,start,end) __flush_tlb_range((vma)->vm_mm->context,start,end)
-
-#define flush_tlb_kernel_range(start, end) __flush_tlb_range(0,start,end)
-
#endif
EXPORT_SYMBOL(flush_kernel_icache_range_asm);
#define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
-int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
+static unsigned long parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
+
+#define FLUSH_TLB_THRESHOLD (2*1024*1024) /* 2MB initial TLB threshold */
+static unsigned long parisc_tlb_flush_threshold __read_mostly = FLUSH_TLB_THRESHOLD;
void __init parisc_setup_cache_timing(void)
{
unsigned long rangetime, alltime;
- unsigned long size;
+ unsigned long size, start;
alltime = mfctl(16);
flush_data_cache();
/* Racy, but if we see an intermediate value, it's ok too... */
parisc_cache_flush_threshold = size * alltime / rangetime;
- parisc_cache_flush_threshold = (parisc_cache_flush_threshold + L1_CACHE_BYTES - 1) &~ (L1_CACHE_BYTES - 1);
+ parisc_cache_flush_threshold = L1_CACHE_ALIGN(parisc_cache_flush_threshold);
if (!parisc_cache_flush_threshold)
parisc_cache_flush_threshold = FLUSH_THRESHOLD;
if (parisc_cache_flush_threshold > cache_info.dc_size)
parisc_cache_flush_threshold = cache_info.dc_size;
- printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
+ printk(KERN_INFO "Setting cache flush threshold to %lu kB\n",
+ parisc_cache_flush_threshold/1024);
+
+ /* calculate TLB flush threshold */
+
+ alltime = mfctl(16);
+ flush_tlb_all();
+ alltime = mfctl(16) - alltime;
+
+ size = PAGE_SIZE;
+ start = (unsigned long) _text;
+ rangetime = mfctl(16);
+ while (start < (unsigned long) _end) {
+ flush_tlb_kernel_range(start, start + PAGE_SIZE);
+ start += PAGE_SIZE;
+ size += PAGE_SIZE;
+ }
+ rangetime = mfctl(16) - rangetime;
+
+ printk(KERN_DEBUG "Whole TLB flush %lu cycles, flushing %lu bytes %lu cycles\n",
+ alltime, size, rangetime);
+
+ parisc_tlb_flush_threshold = size * alltime / rangetime;
+ parisc_tlb_flush_threshold *= num_online_cpus();
+ parisc_tlb_flush_threshold = PAGE_ALIGN(parisc_tlb_flush_threshold);
+ if (!parisc_tlb_flush_threshold)
+ parisc_tlb_flush_threshold = FLUSH_TLB_THRESHOLD;
+
+ printk(KERN_INFO "Setting TLB flush threshold to %lu kB\n",
+ parisc_tlb_flush_threshold/1024);
}
extern void purge_kernel_dcache_page_asm(unsigned long);
}
EXPORT_SYMBOL(copy_user_page);
-void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
-{
- unsigned long flags;
-
- /* Note: purge_tlb_entries can be called at startup with
- no context. */
-
- purge_tlb_start(flags);
- mtsp(mm->context, 1);
- pdtlb(addr);
- pitlb(addr);
- purge_tlb_end(flags);
-}
-EXPORT_SYMBOL(purge_tlb_entries);
-
-void __flush_tlb_range(unsigned long sid, unsigned long start,
- unsigned long end)
+/* __flush_tlb_range()
+ *
+ * returns 1 if all TLBs were flushed.
+ */
+int __flush_tlb_range(unsigned long sid, unsigned long start,
+ unsigned long end)
{
- unsigned long npages;
+ unsigned long flags, size;
- npages = ((end - (start & PAGE_MASK)) + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
- if (npages >= 512) /* 2MB of space: arbitrary, should be tuned */
+ size = (end - start);
+ if (size >= parisc_tlb_flush_threshold) {
flush_tlb_all();
- else {
- unsigned long flags;
+ return 1;
+ }
+ /* Purge TLB entries for small ranges using the pdtlb and
+ pitlb instructions. These instructions execute locally
+ but cause a purge request to be broadcast to other TLBs. */
+ if (likely(!split_tlb)) {
+ while (start < end) {
+ purge_tlb_start(flags);
+ mtsp(sid, 1);
+ pdtlb(start);
+ purge_tlb_end(flags);
+ start += PAGE_SIZE;
+ }
+ return 0;
+ }
+
+ /* split TLB case */
+ while (start < end) {
purge_tlb_start(flags);
mtsp(sid, 1);
- if (split_tlb) {
- while (npages--) {
- pdtlb(start);
- pitlb(start);
- start += PAGE_SIZE;
- }
- } else {
- while (npages--) {
- pdtlb(start);
- start += PAGE_SIZE;
- }
- }
+ pdtlb(start);
+ pitlb(start);
purge_tlb_end(flags);
+ start += PAGE_SIZE;
}
+ return 0;
}
static void cacheflush_h_tmp_function(void *dummy)
.level 2.0
#endif
- .import pa_dbit_lock,data
+ .import pa_tlb_lock,data
/* space_to_prot macro creates a prot id from a space id */
SHLREG %r9,PxD_VALUE_SHIFT,\pmd
extru \va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index
dep %r0,31,PAGE_SHIFT,\pmd /* clear offset */
- shladd \index,BITS_PER_PTE_ENTRY,\pmd,\pmd
- LDREG %r0(\pmd),\pte /* pmd is now pte */
+ shladd \index,BITS_PER_PTE_ENTRY,\pmd,\pmd /* pmd is now pte */
+ LDREG %r0(\pmd),\pte
bb,>=,n \pte,_PAGE_PRESENT_BIT,\fault
.endm
L2_ptep \pgd,\pte,\index,\va,\fault
.endm
- /* Acquire pa_dbit_lock lock. */
- .macro dbit_lock spc,tmp,tmp1
+ /* Acquire pa_tlb_lock lock and recheck page is still present. */
+ .macro tlb_lock spc,ptp,pte,tmp,tmp1,fault
#ifdef CONFIG_SMP
cmpib,COND(=),n 0,\spc,2f
- load32 PA(pa_dbit_lock),\tmp
+ load32 PA(pa_tlb_lock),\tmp
1: LDCW 0(\tmp),\tmp1
cmpib,COND(=) 0,\tmp1,1b
nop
+ LDREG 0(\ptp),\pte
+ bb,<,n \pte,_PAGE_PRESENT_BIT,2f
+ b \fault
+ stw \spc,0(\tmp)
2:
#endif
.endm
- /* Release pa_dbit_lock lock without reloading lock address. */
- .macro dbit_unlock0 spc,tmp
+ /* Release pa_tlb_lock lock without reloading lock address. */
+ .macro tlb_unlock0 spc,tmp
#ifdef CONFIG_SMP
or,COND(=) %r0,\spc,%r0
stw \spc,0(\tmp)
#endif
.endm
- /* Release pa_dbit_lock lock. */
- .macro dbit_unlock1 spc,tmp
+ /* Release pa_tlb_lock lock. */
+ .macro tlb_unlock1 spc,tmp
#ifdef CONFIG_SMP
- load32 PA(pa_dbit_lock),\tmp
- dbit_unlock0 \spc,\tmp
+ load32 PA(pa_tlb_lock),\tmp
+ tlb_unlock0 \spc,\tmp
#endif
.endm
/* Set the _PAGE_ACCESSED bit of the PTE. Be clever and
* don't needlessly dirty the cache line if it was already set */
- .macro update_ptep spc,ptep,pte,tmp,tmp1
-#ifdef CONFIG_SMP
- or,COND(=) %r0,\spc,%r0
- LDREG 0(\ptep),\pte
-#endif
+ .macro update_accessed ptp,pte,tmp,tmp1
ldi _PAGE_ACCESSED,\tmp1
or \tmp1,\pte,\tmp
and,COND(<>) \tmp1,\pte,%r0
- STREG \tmp,0(\ptep)
+ STREG \tmp,0(\ptp)
.endm
/* Set the dirty bit (and accessed bit). No need to be
* clever, this is only used from the dirty fault */
- .macro update_dirty spc,ptep,pte,tmp
-#ifdef CONFIG_SMP
- or,COND(=) %r0,\spc,%r0
- LDREG 0(\ptep),\pte
-#endif
+ .macro update_dirty ptp,pte,tmp
ldi _PAGE_ACCESSED|_PAGE_DIRTY,\tmp
or \tmp,\pte,\pte
- STREG \pte,0(\ptep)
+ STREG \pte,0(\ptp)
.endm
/* bitshift difference between a PFN (based on kernel's PAGE_SIZE)
L3_ptep ptp,pte,t0,va,dtlb_check_alias_20w
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,dtlb_check_alias_20w
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
idtlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
L3_ptep ptp,pte,t0,va,nadtlb_check_alias_20w
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,nadtlb_check_alias_20w
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
idtlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
L2_ptep ptp,pte,t0,va,dtlb_check_alias_11
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,dtlb_check_alias_11
+ update_accessed ptp,pte,t0,t1
make_insert_tlb_11 spc,pte,prot
- mfsp %sr1,t0 /* Save sr1 so we can use it in tlb inserts */
+ mfsp %sr1,t1 /* Save sr1 so we can use it in tlb inserts */
mtsp spc,%sr1
idtlba pte,(%sr1,va)
idtlbp prot,(%sr1,va)
- mtsp t0, %sr1 /* Restore sr1 */
- dbit_unlock1 spc,t0
+ mtsp t1, %sr1 /* Restore sr1 */
+ tlb_unlock1 spc,t0
rfir
nop
L2_ptep ptp,pte,t0,va,nadtlb_check_alias_11
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,nadtlb_check_alias_11
+ update_accessed ptp,pte,t0,t1
make_insert_tlb_11 spc,pte,prot
-
- mfsp %sr1,t0 /* Save sr1 so we can use it in tlb inserts */
+ mfsp %sr1,t1 /* Save sr1 so we can use it in tlb inserts */
mtsp spc,%sr1
idtlba pte,(%sr1,va)
idtlbp prot,(%sr1,va)
- mtsp t0, %sr1 /* Restore sr1 */
- dbit_unlock1 spc,t0
+ mtsp t1, %sr1 /* Restore sr1 */
+ tlb_unlock1 spc,t0
rfir
nop
L2_ptep ptp,pte,t0,va,dtlb_check_alias_20
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,dtlb_check_alias_20
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
- f_extend pte,t0
+ f_extend pte,t1
idtlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
L2_ptep ptp,pte,t0,va,nadtlb_check_alias_20
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,nadtlb_check_alias_20
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
- f_extend pte,t0
+ f_extend pte,t1
- idtlbt pte,prot
- dbit_unlock1 spc,t0
+ idtlbt pte,prot
+ tlb_unlock1 spc,t0
rfir
nop
L3_ptep ptp,pte,t0,va,itlb_fault
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,itlb_fault
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
iitlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
L3_ptep ptp,pte,t0,va,naitlb_check_alias_20w
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,naitlb_check_alias_20w
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
iitlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
L2_ptep ptp,pte,t0,va,itlb_fault
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,itlb_fault
+ update_accessed ptp,pte,t0,t1
make_insert_tlb_11 spc,pte,prot
- mfsp %sr1,t0 /* Save sr1 so we can use it in tlb inserts */
+ mfsp %sr1,t1 /* Save sr1 so we can use it in tlb inserts */
mtsp spc,%sr1
iitlba pte,(%sr1,va)
iitlbp prot,(%sr1,va)
- mtsp t0, %sr1 /* Restore sr1 */
- dbit_unlock1 spc,t0
+ mtsp t1, %sr1 /* Restore sr1 */
+ tlb_unlock1 spc,t0
rfir
nop
L2_ptep ptp,pte,t0,va,naitlb_check_alias_11
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,naitlb_check_alias_11
+ update_accessed ptp,pte,t0,t1
make_insert_tlb_11 spc,pte,prot
- mfsp %sr1,t0 /* Save sr1 so we can use it in tlb inserts */
+ mfsp %sr1,t1 /* Save sr1 so we can use it in tlb inserts */
mtsp spc,%sr1
iitlba pte,(%sr1,va)
iitlbp prot,(%sr1,va)
- mtsp t0, %sr1 /* Restore sr1 */
- dbit_unlock1 spc,t0
+ mtsp t1, %sr1 /* Restore sr1 */
+ tlb_unlock1 spc,t0
rfir
nop
L2_ptep ptp,pte,t0,va,itlb_fault
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,itlb_fault
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
- f_extend pte,t0
+ f_extend pte,t1
iitlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
L2_ptep ptp,pte,t0,va,naitlb_check_alias_20
- dbit_lock spc,t0,t1
- update_ptep spc,ptp,pte,t0,t1
+ tlb_lock spc,ptp,pte,t0,t1,naitlb_check_alias_20
+ update_accessed ptp,pte,t0,t1
make_insert_tlb spc,pte,prot
- f_extend pte,t0
+ f_extend pte,t1
iitlbt pte,prot
- dbit_unlock1 spc,t0
+ tlb_unlock1 spc,t0
rfir
nop
L3_ptep ptp,pte,t0,va,dbit_fault
- dbit_lock spc,t0,t1
- update_dirty spc,ptp,pte,t1
+ tlb_lock spc,ptp,pte,t0,t1,dbit_fault
+ update_dirty ptp,pte,t1
make_insert_tlb spc,pte,prot
idtlbt pte,prot
- dbit_unlock0 spc,t0
+ tlb_unlock0 spc,t0
rfir
nop
#else
L2_ptep ptp,pte,t0,va,dbit_fault
- dbit_lock spc,t0,t1
- update_dirty spc,ptp,pte,t1
+ tlb_lock spc,ptp,pte,t0,t1,dbit_fault
+ update_dirty ptp,pte,t1
make_insert_tlb_11 spc,pte,prot
idtlbp prot,(%sr1,va)
mtsp t1, %sr1 /* Restore sr1 */
- dbit_unlock0 spc,t0
+ tlb_unlock0 spc,t0
rfir
nop
L2_ptep ptp,pte,t0,va,dbit_fault
- dbit_lock spc,t0,t1
- update_dirty spc,ptp,pte,t1
+ tlb_lock spc,ptp,pte,t0,t1,dbit_fault
+ update_dirty ptp,pte,t1
make_insert_tlb spc,pte,prot
f_extend pte,t1
- idtlbt pte,prot
- dbit_unlock0 spc,t0
+ idtlbt pte,prot
+ tlb_unlock0 spc,t0
rfir
nop
#endif
#include "../math-emu/math-emu.h" /* for handle_fpe() */
-#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
-DEFINE_SPINLOCK(pa_dbit_lock);
-#endif
-
static void parisc_show_stack(struct task_struct *task, unsigned long *sp,
struct pt_regs *regs);
.text
/*
+ * Used by threads when the lock bit of core_idle_state is set.
+ * Threads will spin in HMT_LOW until the lock bit is cleared.
+ * r14 - pointer to core_idle_state
+ * r15 - used to load contents of core_idle_state
+ */
+
+core_idle_lock_held:
+ HMT_LOW
+3: lwz r15,0(r14)
+ andi. r15,r15,PNV_CORE_IDLE_LOCK_BIT
+ bne 3b
+ HMT_MEDIUM
+ lwarx r15,0,r14
+ blr
+
+/*
* Pass requested state in r3:
* r3 - PNV_THREAD_NAP/SLEEP/WINKLE
*
ld r14,PACA_CORE_IDLE_STATE_PTR(r13)
lwarx_loop1:
lwarx r15,0,r14
+
+ andi. r9,r15,PNV_CORE_IDLE_LOCK_BIT
+ bnel core_idle_lock_held
+
andc r15,r15,r7 /* Clear thread bit */
andi. r15,r15,PNV_CORE_IDLE_THREAD_BITS
* workaround undo code or resyncing timebase or restoring context
* In either case loop until the lock bit is cleared.
*/
- bne core_idle_lock_held
+ bnel core_idle_lock_held
cmpwi cr2,r15,0
lbz r4,PACA_SUBCORE_SIBLING_MASK(r13)
isync
b common_exit
-core_idle_lock_held:
- HMT_LOW
-core_idle_lock_loop:
- lwz r15,0(14)
- andi. r9,r15,PNV_CORE_IDLE_LOCK_BIT
- bne core_idle_lock_loop
- HMT_MEDIUM
- b lwarx_loop2
-
first_thread_in_subcore:
/* First thread in subcore to wakeup */
ori r15,r15,PNV_CORE_IDLE_LOCK_BIT
__this_cpu_inc(irq_stat.mce_exceptions);
+ add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE);
+
if (cur_cpu_spec && cur_cpu_spec->machine_check_early)
handled = cur_cpu_spec->machine_check_early(regs);
return handled;
printk(KERN_ALERT "Unable to handle kernel paging request for "
"instruction fetch\n");
break;
+ case 0x600:
+ printk(KERN_ALERT "Unable to handle kernel paging request for "
+ "unaligned access at address 0x%08lx\n", regs->dar);
+ break;
default:
printk(KERN_ALERT "Unable to handle kernel paging request for "
"unknown fault\n");
if (!attr)
return NULL;
+ sysfs_attr_init(&attr->attr.attr);
+
attr->var = str;
attr->attr.attr.name = name;
attr->attr.attr.mode = 0444;
return elog;
}
-static void elog_work_fn(struct work_struct *work)
+static irqreturn_t elog_event(int irq, void *data)
{
__be64 size;
__be64 id;
rc = opal_get_elog_size(&id, &size, &type);
if (rc != OPAL_SUCCESS) {
pr_err("ELOG: OPAL log info read failed\n");
- return;
+ return IRQ_HANDLED;
}
elog_size = be64_to_cpu(size);
* entries.
*/
if (kset_find_obj(elog_kset, name))
- return;
+ return IRQ_HANDLED;
create_elog_obj(log_id, elog_size, elog_type);
-}
-
-static DECLARE_WORK(elog_work, elog_work_fn);
-static irqreturn_t elog_event(int irq, void *data)
-{
- schedule_work(&elog_work);
return IRQ_HANDLED;
}
return irq;
}
- rc = request_irq(irq, elog_event,
- IRQ_TYPE_LEVEL_HIGH, "opal-elog", NULL);
+ rc = request_threaded_irq(irq, NULL, elog_event,
+ IRQF_TRIGGER_HIGH | IRQF_ONESHOT, "opal-elog", NULL);
if (rc) {
pr_err("%s: Can't request OPAL event irq (%d)\n",
__func__, rc);
static int opal_prd_mmap(struct file *file, struct vm_area_struct *vma)
{
size_t addr, size;
+ pgprot_t page_prot;
int rc;
pr_devel("opal_prd_mmap(0x%016lx, 0x%016lx, 0x%lx, 0x%lx)\n",
if (!opal_prd_range_is_valid(addr, size))
return -EINVAL;
- vma->vm_page_prot = __pgprot(pgprot_val(phys_mem_access_prot(file,
- vma->vm_pgoff,
- size, vma->vm_page_prot))
- | _PAGE_SPECIAL);
+ page_prot = phys_mem_access_prot(file, vma->vm_pgoff,
+ size, vma->vm_page_prot);
rc = remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, size,
- vma->vm_page_prot);
+ page_prot);
return rc;
}
#include <linux/pci.h>
#include <linux/semaphore.h>
#include <asm/msi_bitmap.h>
+#include <asm/ppc-pci.h>
struct ppc4xx_hsta_msi {
struct device *dev;
CLK_OF_DECLARE(sun6i_a31_clk_init, "allwinner,sun6i-a31", sun6i_init_clocks);
CLK_OF_DECLARE(sun6i_a31s_clk_init, "allwinner,sun6i-a31s", sun6i_init_clocks);
CLK_OF_DECLARE(sun8i_a23_clk_init, "allwinner,sun8i-a23", sun6i_init_clocks);
+CLK_OF_DECLARE(sun8i_a33_clk_init, "allwinner,sun8i-a33", sun6i_init_clocks);
static void __init sun9i_init_clocks(struct device_node *node)
{
processor = (struct acpi_madt_generic_interrupt *)header;
- if (BAD_MADT_ENTRY(processor, end))
+ if (BAD_MADT_GICC_ENTRY(processor, end))
return -EINVAL;
/*
ret = gpmc_probe_nand_child(pdev, child);
else if (of_node_cmp(child->name, "onenand") == 0)
ret = gpmc_probe_onenand_child(pdev, child);
- else if (of_node_cmp(child->name, "ethernet") == 0 ||
- of_node_cmp(child->name, "nor") == 0 ||
- of_node_cmp(child->name, "uart") == 0)
+ else
ret = gpmc_probe_generic_child(pdev, child);
-
- if (WARN(ret < 0, "%s: probing gpmc child %s failed\n",
- __func__, child->full_name))
- of_node_put(child);
}
return 0;
afu = cxl_pci_to_afu(dev);
+ get_device(&afu->dev);
ctx = cxl_context_alloc();
if (IS_ERR(ctx))
return ctx;
rc = cxl_context_init(ctx, afu, false, NULL);
if (rc) {
kfree(ctx);
+ put_device(&afu->dev);
return ERR_PTR(-ENOMEM);
}
cxl_assign_psn_space(ctx);
if (ctx->status != CLOSED)
return -EBUSY;
+ put_device(&ctx->afu->dev);
+
cxl_context_free(ctx);
return 0;
}
ctx->status = STARTED;
- get_device(&ctx->afu->dev);
out:
mutex_unlock(&ctx->status_mutex);
return rc;
/* Stop a context. Returns 0 on success, otherwise -Errno */
int cxl_stop_context(struct cxl_context *ctx)
{
- int rc;
-
- rc = __detach_context(ctx);
- if (!rc)
- put_device(&ctx->afu->dev);
- return rc;
+ return __detach_context(ctx);
}
EXPORT_SYMBOL_GPL(cxl_stop_context);
if (ctx->afu->current_mode == CXL_MODE_DEDICATED) {
area = ctx->afu->psn_phys;
- if (offset > ctx->afu->adapter->ps_size)
+ if (offset >= ctx->afu->adapter->ps_size)
return VM_FAULT_SIGBUS;
} else {
area = ctx->psn_phys;
- if (offset > ctx->psn_size)
+ if (offset >= ctx->psn_size)
return VM_FAULT_SIGBUS;
}
*/
int cxl_context_iomap(struct cxl_context *ctx, struct vm_area_struct *vma)
{
+ u64 start = vma->vm_pgoff << PAGE_SHIFT;
u64 len = vma->vm_end - vma->vm_start;
- len = min(len, ctx->psn_size);
+
+ if (ctx->afu->current_mode == CXL_MODE_DEDICATED) {
+ if (start + len > ctx->afu->adapter->ps_size)
+ return -EINVAL;
+ } else {
+ if (start + len > ctx->psn_size)
+ return -EINVAL;
+ }
if (ctx->afu->current_mode != CXL_MODE_DEDICATED) {
/* make sure there is a valid per process space for this AFU */
spin_lock(&adapter->afu_list_lock);
for (slice = 0; slice < adapter->slices; slice++) {
afu = adapter->afu[slice];
- if (!afu->enabled)
+ if (!afu || !afu->enabled)
continue;
rcu_read_lock();
idr_for_each_entry(&afu->contexts_idr, ctx, id)
static void cxl_unmap_slice_regs(struct cxl_afu *afu)
{
- if (afu->p1n_mmio)
+ if (afu->p2n_mmio)
iounmap(afu->p2n_mmio);
if (afu->p1n_mmio)
iounmap(afu->p1n_mmio);
unsigned long addr;
phb = pci_bus_to_host(bus);
- afu = (struct cxl_afu *)phb->private_data;
if (phb == NULL)
return PCIBIOS_DEVICE_NOT_FOUND;
+ afu = (struct cxl_afu *)phb->private_data;
+
if (cxl_pcie_cfg_record(bus->number, devfn) > afu->crs_num)
return PCIBIOS_DEVICE_NOT_FOUND;
if (offset >= (unsigned long)phb->cfg_data)
#define REG_3 0x0004a0
#define REG_4 0x000600
#define REG_6 0x000800
+#define REG_7 0x000804
#define REG_8 0x000820
#define REG_9 0x000a04
#define REG_10 0x018000
#define REG_21 0x200218
#define REG_22 0x0005a0
#define REG_23 0x0005c0
+#define REG_24 0x000808
+#define REG_25 0x000b00
#define REG_26 0x200118
#define REG_27 0x200308
#define REG_32 0x21003c
#define SET_LENXY_START_RECFILL(fb, lenxy) \
WRITE_WORD(lenxy, fb, REG_9)
+#define SETUP_COPYAREA(fb) \
+ WRITE_BYTE(0, fb, REG_16b1)
+
static void
HYPER_ENABLE_DISABLE_DISPLAY(struct stifb_info *fb, int enable)
{
return 0;
}
+static void
+stifb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
+{
+ struct stifb_info *fb = container_of(info, struct stifb_info, info);
+
+ SETUP_COPYAREA(fb);
+
+ SETUP_HW(fb);
+ if (fb->info.var.bits_per_pixel == 32) {
+ WRITE_WORD(0xBBA0A000, fb, REG_10);
+
+ NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xffffffff);
+ } else {
+ WRITE_WORD(fb->id == S9000_ID_HCRX ? 0x13a02000 : 0x13a01000, fb, REG_10);
+
+ NGLE_REALLY_SET_IMAGE_PLANEMASK(fb, 0xff);
+ }
+
+ NGLE_QUICK_SET_IMAGE_BITMAP_OP(fb,
+ IBOvals(RopSrc, MaskAddrOffset(0),
+ BitmapExtent08, StaticReg(1),
+ DataDynamic, MaskOtc, BGx(0), FGx(0)));
+
+ WRITE_WORD(((area->sx << 16) | area->sy), fb, REG_24);
+ WRITE_WORD(((area->width << 16) | area->height), fb, REG_7);
+ WRITE_WORD(((area->dx << 16) | area->dy), fb, REG_25);
+
+ SETUP_FB(fb);
+}
+
static void __init
stifb_init_display(struct stifb_info *fb)
{
.fb_setcolreg = stifb_setcolreg,
.fb_blank = stifb_blank,
.fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
+ .fb_copyarea = stifb_copyarea,
.fb_imageblit = cfb_imageblit,
};
info->fbops = &stifb_ops;
info->screen_base = ioremap_nocache(REGION_BASE(fb,1), fix->smem_len);
info->screen_size = fix->smem_len;
- info->flags = FBINFO_DEFAULT;
+ info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA;
info->pseudo_palette = &fb->pseudo_palette;
/* This has to be done !!! */
#define BTRFS_INODE_IN_DELALLOC_LIST 9
#define BTRFS_INODE_READDIO_NEED_LOCK 10
#define BTRFS_INODE_HAS_PROPS 11
+/* DIO is ready to submit */
+#define BTRFS_INODE_DIO_READY 12
/*
* The following 3 bits are meant only for the btree inode.
* When any of them is set, it means an error happened while writing an
spinlock_t unused_bgs_lock;
struct list_head unused_bgs;
struct mutex unused_bg_unpin_mutex;
+ struct mutex delete_unused_bgs_mutex;
/* For btrfs to record security options */
struct security_mnt_opts security_opts;
{
struct btrfs_root *root = arg;
int again;
+ struct btrfs_trans_handle *trans;
do {
again = 0;
}
btrfs_run_delayed_iputs(root);
- btrfs_delete_unused_bgs(root->fs_info);
again = btrfs_clean_one_deleted_snapshot(root);
mutex_unlock(&root->fs_info->cleaner_mutex);
* needn't do anything special here.
*/
btrfs_run_defrag_inodes(root->fs_info);
+
+ /*
+ * Acquires fs_info->delete_unused_bgs_mutex to avoid racing
+ * with relocation (btrfs_relocate_chunk) and relocation
+ * acquires fs_info->cleaner_mutex (btrfs_relocate_block_group)
+ * after acquiring fs_info->delete_unused_bgs_mutex. So we
+ * can't hold, nor need to, fs_info->cleaner_mutex when deleting
+ * unused block groups.
+ */
+ btrfs_delete_unused_bgs(root->fs_info);
sleep:
if (!try_to_freeze() && !again) {
set_current_state(TASK_INTERRUPTIBLE);
__set_current_state(TASK_RUNNING);
}
} while (!kthread_should_stop());
+
+ /*
+ * Transaction kthread is stopped before us and wakes us up.
+ * However we might have started a new transaction and COWed some
+ * tree blocks when deleting unused block groups for example. So
+ * make sure we commit the transaction we started to have a clean
+ * shutdown when evicting the btree inode - if it has dirty pages
+ * when we do the final iput() on it, eviction will trigger a
+ * writeback for it which will fail with null pointer dereferences
+ * since work queues and other resources were already released and
+ * destroyed by the time the iput/eviction/writeback is made.
+ */
+ trans = btrfs_attach_transaction(root);
+ if (IS_ERR(trans)) {
+ if (PTR_ERR(trans) != -ENOENT)
+ btrfs_err(root->fs_info,
+ "cleaner transaction attach returned %ld",
+ PTR_ERR(trans));
+ } else {
+ int ret;
+
+ ret = btrfs_commit_transaction(trans, root);
+ if (ret)
+ btrfs_err(root->fs_info,
+ "cleaner open transaction commit returned %d",
+ ret);
+ }
+
return 0;
}
spin_lock_init(&fs_info->unused_bgs_lock);
rwlock_init(&fs_info->tree_mod_log_lock);
mutex_init(&fs_info->unused_bg_unpin_mutex);
+ mutex_init(&fs_info->delete_unused_bgs_mutex);
mutex_init(&fs_info->reloc_mutex);
mutex_init(&fs_info->delalloc_root_mutex);
seqlock_init(&fs_info->profiles_lock);
}
spin_unlock(&fs_info->unused_bgs_lock);
+ mutex_lock(&root->fs_info->delete_unused_bgs_mutex);
+
/* Don't want to race with allocators so take the groups_sem */
down_write(&space_info->groups_sem);
spin_lock(&block_group->lock);
end_trans:
btrfs_end_transaction(trans, root);
next:
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
btrfs_put_block_group(block_group);
spin_lock(&fs_info->unused_bgs_lock);
}
{
struct btrfs_free_space_ctl *ctl = root->free_ino_ctl;
struct rb_root *rbroot = &root->free_ino_pinned->free_space_offset;
+ spinlock_t *rbroot_lock = &root->free_ino_pinned->tree_lock;
struct btrfs_free_space *info;
struct rb_node *n;
u64 count;
return;
while (1) {
+ bool add_to_ctl = true;
+
+ spin_lock(rbroot_lock);
n = rb_first(rbroot);
- if (!n)
+ if (!n) {
+ spin_unlock(rbroot_lock);
break;
+ }
info = rb_entry(n, struct btrfs_free_space, offset_index);
BUG_ON(info->bitmap); /* Logic error */
if (info->offset > root->ino_cache_progress)
- goto free;
+ add_to_ctl = false;
else if (info->offset + info->bytes > root->ino_cache_progress)
count = root->ino_cache_progress - info->offset + 1;
else
count = info->bytes;
- __btrfs_add_free_space(ctl, info->offset, count);
-free:
rb_erase(&info->offset_index, rbroot);
- kfree(info);
+ spin_unlock(rbroot_lock);
+ if (add_to_ctl)
+ __btrfs_add_free_space(ctl, info->offset, count);
+ kmem_cache_free(btrfs_free_space_cachep, info);
}
}
/*
* Keep looping until we have no more ranges in the io tree.
* We can have ongoing bios started by readpages (called from readahead)
- * that didn't get their end io callbacks called yet or they are still
- * in progress ((extent_io.c:end_bio_extent_readpage()). This means some
+ * that have their endio callback (extent_io.c:end_bio_extent_readpage)
+ * still in progress (unlocked the pages in the bio but did not yet
+ * unlocked the ranges in the io tree). Therefore this means some
* ranges can still be locked and eviction started because before
* submitting those bios, which are executed by a separate task (work
* queue kthread), inode references (inode->i_count) were not taken
current->journal_info = outstanding_extents;
btrfs_free_reserved_data_space(inode, len);
+ set_bit(BTRFS_INODE_DIO_READY, &BTRFS_I(inode)->runtime_flags);
}
/*
struct bio *dio_bio;
int ret;
- if (err)
- goto out_done;
again:
ret = btrfs_dec_test_first_ordered_pending(inode, &ordered,
&ordered_offset,
ordered = NULL;
goto again;
}
-out_done:
dio_bio = dip->dio_bio;
kfree(dip);
static void btrfs_submit_direct(int rw, struct bio *dio_bio,
struct inode *inode, loff_t file_offset)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
- struct btrfs_dio_private *dip;
- struct bio *io_bio;
+ struct btrfs_dio_private *dip = NULL;
+ struct bio *io_bio = NULL;
struct btrfs_io_bio *btrfs_bio;
int skip_sum;
int write = rw & REQ_WRITE;
dip = kzalloc(sizeof(*dip), GFP_NOFS);
if (!dip) {
ret = -ENOMEM;
- goto free_io_bio;
+ goto free_ordered;
}
dip->private = dio_bio->bi_private;
if (btrfs_bio->end_io)
btrfs_bio->end_io(btrfs_bio, ret);
-free_io_bio:
- bio_put(io_bio);
free_ordered:
/*
- * If this is a write, we need to clean up the reserved space and kill
- * the ordered extent.
+ * If we arrived here it means either we failed to submit the dip
+ * or we either failed to clone the dio_bio or failed to allocate the
+ * dip. If we cloned the dio_bio and allocated the dip, we can just
+ * call bio_endio against our io_bio so that we get proper resource
+ * cleanup if we fail to submit the dip, otherwise, we must do the
+ * same as btrfs_endio_direct_[write|read] because we can't call these
+ * callbacks - they require an allocated dip and a clone of dio_bio.
*/
- if (write) {
- struct btrfs_ordered_extent *ordered;
- ordered = btrfs_lookup_ordered_extent(inode, file_offset);
- if (!test_bit(BTRFS_ORDERED_PREALLOC, &ordered->flags) &&
- !test_bit(BTRFS_ORDERED_NOCOW, &ordered->flags))
- btrfs_free_reserved_extent(root, ordered->start,
- ordered->disk_len, 1);
- btrfs_put_ordered_extent(ordered);
- btrfs_put_ordered_extent(ordered);
+ if (io_bio && dip) {
+ bio_endio(io_bio, ret);
+ /*
+ * The end io callbacks free our dip, do the final put on io_bio
+ * and all the cleanup and final put for dio_bio (through
+ * dio_end_io()).
+ */
+ dip = NULL;
+ io_bio = NULL;
+ } else {
+ if (write) {
+ struct btrfs_ordered_extent *ordered;
+
+ ordered = btrfs_lookup_ordered_extent(inode,
+ file_offset);
+ set_bit(BTRFS_ORDERED_IOERR, &ordered->flags);
+ /*
+ * Decrements our ref on the ordered extent and removes
+ * the ordered extent from the inode's ordered tree,
+ * doing all the proper resource cleanup such as for the
+ * reserved space and waking up any waiters for this
+ * ordered extent (through btrfs_remove_ordered_extent).
+ */
+ btrfs_finish_ordered_io(ordered);
+ } else {
+ unlock_extent(&BTRFS_I(inode)->io_tree, file_offset,
+ file_offset + dio_bio->bi_iter.bi_size - 1);
+ }
+ clear_bit(BIO_UPTODATE, &dio_bio->bi_flags);
+ /*
+ * Releases and cleans up our dio_bio, no need to bio_put()
+ * nor bio_endio()/bio_io_error() against dio_bio.
+ */
+ dio_end_io(dio_bio, ret);
}
- bio_endio(dio_bio, ret);
+ if (io_bio)
+ bio_put(io_bio);
+ kfree(dip);
}
static ssize_t check_direct_IO(struct btrfs_root *root, struct kiocb *iocb,
btrfs_submit_direct, flags);
if (iov_iter_rw(iter) == WRITE) {
current->journal_info = NULL;
- if (ret < 0 && ret != -EIOCBQUEUED)
- btrfs_delalloc_release_space(inode, count);
- else if (ret >= 0 && (size_t)ret < count)
+ if (ret < 0 && ret != -EIOCBQUEUED) {
+ /*
+ * If the error comes from submitting stage,
+ * btrfs_get_blocsk_direct() has free'd data space,
+ * and metadata space will be handled by
+ * finish_ordered_fn, don't do that again to make
+ * sure bytes_may_use is correct.
+ */
+ if (!test_and_clear_bit(BTRFS_INODE_DIO_READY,
+ &BTRFS_I(inode)->runtime_flags))
+ btrfs_delalloc_release_space(inode, count);
+ } else if (ret >= 0 && (size_t)ret < count)
btrfs_delalloc_release_space(inode,
count - (size_t)ret);
}
static int btrfs_clone(struct inode *src, struct inode *inode,
- u64 off, u64 olen, u64 olen_aligned, u64 destoff);
+ u64 off, u64 olen, u64 olen_aligned, u64 destoff,
+ int no_time_update);
/* Mask out flags that are inappropriate for the given type of inode. */
static inline __u32 btrfs_mask_flags(umode_t mode, __u32 flags)
return ret;
}
-static struct page *extent_same_get_page(struct inode *inode, u64 off)
+static struct page *extent_same_get_page(struct inode *inode, pgoff_t index)
{
struct page *page;
- pgoff_t index;
struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
- index = off >> PAGE_CACHE_SHIFT;
-
page = grab_cache_page(inode->i_mapping, index);
if (!page)
return NULL;
return page;
}
+static int gather_extent_pages(struct inode *inode, struct page **pages,
+ int num_pages, u64 off)
+{
+ int i;
+ pgoff_t index = off >> PAGE_CACHE_SHIFT;
+
+ for (i = 0; i < num_pages; i++) {
+ pages[i] = extent_same_get_page(inode, index + i);
+ if (!pages[i])
+ return -ENOMEM;
+ }
+ return 0;
+}
+
static inline void lock_extent_range(struct inode *inode, u64 off, u64 len)
{
/* do any pending delalloc/csum calc on src, one way or
}
}
-static void btrfs_double_unlock(struct inode *inode1, u64 loff1,
- struct inode *inode2, u64 loff2, u64 len)
+static void btrfs_double_inode_unlock(struct inode *inode1, struct inode *inode2)
{
- unlock_extent(&BTRFS_I(inode1)->io_tree, loff1, loff1 + len - 1);
- unlock_extent(&BTRFS_I(inode2)->io_tree, loff2, loff2 + len - 1);
-
mutex_unlock(&inode1->i_mutex);
mutex_unlock(&inode2->i_mutex);
}
-static void btrfs_double_lock(struct inode *inode1, u64 loff1,
- struct inode *inode2, u64 loff2, u64 len)
+static void btrfs_double_inode_lock(struct inode *inode1, struct inode *inode2)
+{
+ if (inode1 < inode2)
+ swap(inode1, inode2);
+
+ mutex_lock_nested(&inode1->i_mutex, I_MUTEX_PARENT);
+ if (inode1 != inode2)
+ mutex_lock_nested(&inode2->i_mutex, I_MUTEX_CHILD);
+}
+
+static void btrfs_double_extent_unlock(struct inode *inode1, u64 loff1,
+ struct inode *inode2, u64 loff2, u64 len)
+{
+ unlock_extent(&BTRFS_I(inode1)->io_tree, loff1, loff1 + len - 1);
+ unlock_extent(&BTRFS_I(inode2)->io_tree, loff2, loff2 + len - 1);
+}
+
+static void btrfs_double_extent_lock(struct inode *inode1, u64 loff1,
+ struct inode *inode2, u64 loff2, u64 len)
{
if (inode1 < inode2) {
swap(inode1, inode2);
swap(loff1, loff2);
}
-
- mutex_lock_nested(&inode1->i_mutex, I_MUTEX_PARENT);
lock_extent_range(inode1, loff1, len);
- if (inode1 != inode2) {
- mutex_lock_nested(&inode2->i_mutex, I_MUTEX_CHILD);
+ if (inode1 != inode2)
lock_extent_range(inode2, loff2, len);
+}
+
+struct cmp_pages {
+ int num_pages;
+ struct page **src_pages;
+ struct page **dst_pages;
+};
+
+static void btrfs_cmp_data_free(struct cmp_pages *cmp)
+{
+ int i;
+ struct page *pg;
+
+ for (i = 0; i < cmp->num_pages; i++) {
+ pg = cmp->src_pages[i];
+ if (pg)
+ page_cache_release(pg);
+ pg = cmp->dst_pages[i];
+ if (pg)
+ page_cache_release(pg);
+ }
+ kfree(cmp->src_pages);
+ kfree(cmp->dst_pages);
+}
+
+static int btrfs_cmp_data_prepare(struct inode *src, u64 loff,
+ struct inode *dst, u64 dst_loff,
+ u64 len, struct cmp_pages *cmp)
+{
+ int ret;
+ int num_pages = PAGE_CACHE_ALIGN(len) >> PAGE_CACHE_SHIFT;
+ struct page **src_pgarr, **dst_pgarr;
+
+ /*
+ * We must gather up all the pages before we initiate our
+ * extent locking. We use an array for the page pointers. Size
+ * of the array is bounded by len, which is in turn bounded by
+ * BTRFS_MAX_DEDUPE_LEN.
+ */
+ src_pgarr = kzalloc(num_pages * sizeof(struct page *), GFP_NOFS);
+ dst_pgarr = kzalloc(num_pages * sizeof(struct page *), GFP_NOFS);
+ if (!src_pgarr || !dst_pgarr) {
+ kfree(src_pgarr);
+ kfree(dst_pgarr);
+ return -ENOMEM;
}
+ cmp->num_pages = num_pages;
+ cmp->src_pages = src_pgarr;
+ cmp->dst_pages = dst_pgarr;
+
+ ret = gather_extent_pages(src, cmp->src_pages, cmp->num_pages, loff);
+ if (ret)
+ goto out;
+
+ ret = gather_extent_pages(dst, cmp->dst_pages, cmp->num_pages, dst_loff);
+
+out:
+ if (ret)
+ btrfs_cmp_data_free(cmp);
+ return 0;
}
static int btrfs_cmp_data(struct inode *src, u64 loff, struct inode *dst,
- u64 dst_loff, u64 len)
+ u64 dst_loff, u64 len, struct cmp_pages *cmp)
{
int ret = 0;
+ int i;
struct page *src_page, *dst_page;
unsigned int cmp_len = PAGE_CACHE_SIZE;
void *addr, *dst_addr;
+ i = 0;
while (len) {
if (len < PAGE_CACHE_SIZE)
cmp_len = len;
- src_page = extent_same_get_page(src, loff);
- if (!src_page)
- return -EINVAL;
- dst_page = extent_same_get_page(dst, dst_loff);
- if (!dst_page) {
- page_cache_release(src_page);
- return -EINVAL;
- }
+ BUG_ON(i >= cmp->num_pages);
+
+ src_page = cmp->src_pages[i];
+ dst_page = cmp->dst_pages[i];
+
addr = kmap_atomic(src_page);
dst_addr = kmap_atomic(dst_page);
kunmap_atomic(addr);
kunmap_atomic(dst_addr);
- page_cache_release(src_page);
- page_cache_release(dst_page);
if (ret)
break;
- loff += cmp_len;
- dst_loff += cmp_len;
len -= cmp_len;
+ i++;
}
return ret;
{
int ret;
u64 len = olen;
+ struct cmp_pages cmp;
+ int same_inode = 0;
+ u64 same_lock_start = 0;
+ u64 same_lock_len = 0;
- /*
- * btrfs_clone() can't handle extents in the same file
- * yet. Once that works, we can drop this check and replace it
- * with a check for the same inode, but overlapping extents.
- */
if (src == dst)
- return -EINVAL;
+ same_inode = 1;
if (len == 0)
return 0;
- btrfs_double_lock(src, loff, dst, dst_loff, len);
+ if (same_inode) {
+ mutex_lock(&src->i_mutex);
- ret = extent_same_check_offsets(src, loff, &len, olen);
- if (ret)
- goto out_unlock;
+ ret = extent_same_check_offsets(src, loff, &len, olen);
+ if (ret)
+ goto out_unlock;
- ret = extent_same_check_offsets(dst, dst_loff, &len, olen);
- if (ret)
- goto out_unlock;
+ /*
+ * Single inode case wants the same checks, except we
+ * don't want our length pushed out past i_size as
+ * comparing that data range makes no sense.
+ *
+ * extent_same_check_offsets() will do this for an
+ * unaligned length at i_size, so catch it here and
+ * reject the request.
+ *
+ * This effectively means we require aligned extents
+ * for the single-inode case, whereas the other cases
+ * allow an unaligned length so long as it ends at
+ * i_size.
+ */
+ if (len != olen) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ /* Check for overlapping ranges */
+ if (dst_loff + len > loff && dst_loff < loff + len) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ same_lock_start = min_t(u64, loff, dst_loff);
+ same_lock_len = max_t(u64, loff, dst_loff) + len - same_lock_start;
+ } else {
+ btrfs_double_inode_lock(src, dst);
+
+ ret = extent_same_check_offsets(src, loff, &len, olen);
+ if (ret)
+ goto out_unlock;
+
+ ret = extent_same_check_offsets(dst, dst_loff, &len, olen);
+ if (ret)
+ goto out_unlock;
+ }
/* don't make the dst file partly checksummed */
if ((BTRFS_I(src)->flags & BTRFS_INODE_NODATASUM) !=
goto out_unlock;
}
- ret = btrfs_cmp_data(src, loff, dst, dst_loff, len);
+ ret = btrfs_cmp_data_prepare(src, loff, dst, dst_loff, olen, &cmp);
+ if (ret)
+ goto out_unlock;
+
+ if (same_inode)
+ lock_extent_range(src, same_lock_start, same_lock_len);
+ else
+ btrfs_double_extent_lock(src, loff, dst, dst_loff, len);
+
+ /* pass original length for comparison so we stay within i_size */
+ ret = btrfs_cmp_data(src, loff, dst, dst_loff, olen, &cmp);
if (ret == 0)
- ret = btrfs_clone(src, dst, loff, olen, len, dst_loff);
+ ret = btrfs_clone(src, dst, loff, olen, len, dst_loff, 1);
+
+ if (same_inode)
+ unlock_extent(&BTRFS_I(src)->io_tree, same_lock_start,
+ same_lock_start + same_lock_len - 1);
+ else
+ btrfs_double_extent_unlock(src, loff, dst, dst_loff, len);
+ btrfs_cmp_data_free(&cmp);
out_unlock:
- btrfs_double_unlock(src, loff, dst, dst_loff, len);
+ if (same_inode)
+ mutex_unlock(&src->i_mutex);
+ else
+ btrfs_double_inode_unlock(src, dst);
return ret;
}
struct inode *inode,
u64 endoff,
const u64 destoff,
- const u64 olen)
+ const u64 olen,
+ int no_time_update)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
inode_inc_iversion(inode);
- inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+ if (!no_time_update)
+ inode->i_mtime = inode->i_ctime = CURRENT_TIME;
/*
* We round up to the block size at eof when determining which
* extents to clone above, but shouldn't round up the file size.
* @inode: Inode to clone to
* @off: Offset within source to start clone from
* @olen: Original length, passed by user, of range to clone
- * @olen_aligned: Block-aligned value of olen, extent_same uses
- * identical values here
+ * @olen_aligned: Block-aligned value of olen
* @destoff: Offset within @inode to start clone
+ * @no_time_update: Whether to update mtime/ctime on the target inode
*/
static int btrfs_clone(struct inode *src, struct inode *inode,
const u64 off, const u64 olen, const u64 olen_aligned,
- const u64 destoff)
+ const u64 destoff, int no_time_update)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_path *path = NULL;
root->sectorsize);
ret = clone_finish_inode_update(trans, inode,
last_dest_end,
- destoff, olen);
+ destoff, olen,
+ no_time_update);
if (ret)
goto out;
if (new_key.offset + datal >= destoff + len)
clone_update_extent_map(inode, trans, NULL, last_dest_end,
destoff + len - last_dest_end);
ret = clone_finish_inode_update(trans, inode, destoff + len,
- destoff, olen);
+ destoff, olen, no_time_update);
}
out:
lock_extent_range(inode, destoff, len);
}
- ret = btrfs_clone(src, inode, off, olen, len, destoff);
+ ret = btrfs_clone(src, inode, off, olen, len, destoff, 0);
if (same_inode) {
u64 lock_start = min_t(u64, off, destoff);
trace_btrfs_ordered_extent_put(entry->inode, entry);
if (atomic_dec_and_test(&entry->refs)) {
+ ASSERT(list_empty(&entry->log_list));
+ ASSERT(list_empty(&entry->trans_list));
+ ASSERT(list_empty(&entry->root_extent_list));
+ ASSERT(RB_EMPTY_NODE(&entry->rb_node));
if (entry->inode)
btrfs_add_delayed_iput(entry->inode);
while (!list_empty(&entry->list)) {
spin_lock_irq(&tree->lock);
node = &entry->rb_node;
rb_erase(node, &tree->tree);
+ RB_CLEAR_NODE(node);
if (tree->last == node)
tree->last = NULL;
set_bit(BTRFS_ORDERED_COMPLETE, &entry->flags);
struct btrfs_root *quota_root;
struct btrfs_qgroup *qgroup;
int ret = 0;
+ /* Sometimes we would want to clear the limit on this qgroup.
+ * To meet this requirement, we treat the -1 as a special value
+ * which tell kernel to clear the limit on this qgroup.
+ */
+ const u64 CLEAR_VALUE = -1;
mutex_lock(&fs_info->qgroup_ioctl_lock);
quota_root = fs_info->quota_root;
}
spin_lock(&fs_info->qgroup_lock);
- if (limit->flags & BTRFS_QGROUP_LIMIT_MAX_RFER)
- qgroup->max_rfer = limit->max_rfer;
- if (limit->flags & BTRFS_QGROUP_LIMIT_MAX_EXCL)
- qgroup->max_excl = limit->max_excl;
- if (limit->flags & BTRFS_QGROUP_LIMIT_RSV_RFER)
- qgroup->rsv_rfer = limit->rsv_rfer;
- if (limit->flags & BTRFS_QGROUP_LIMIT_RSV_EXCL)
- qgroup->rsv_excl = limit->rsv_excl;
+ if (limit->flags & BTRFS_QGROUP_LIMIT_MAX_RFER) {
+ if (limit->max_rfer == CLEAR_VALUE) {
+ qgroup->lim_flags &= ~BTRFS_QGROUP_LIMIT_MAX_RFER;
+ limit->flags &= ~BTRFS_QGROUP_LIMIT_MAX_RFER;
+ qgroup->max_rfer = 0;
+ } else {
+ qgroup->max_rfer = limit->max_rfer;
+ }
+ }
+ if (limit->flags & BTRFS_QGROUP_LIMIT_MAX_EXCL) {
+ if (limit->max_excl == CLEAR_VALUE) {
+ qgroup->lim_flags &= ~BTRFS_QGROUP_LIMIT_MAX_EXCL;
+ limit->flags &= ~BTRFS_QGROUP_LIMIT_MAX_EXCL;
+ qgroup->max_excl = 0;
+ } else {
+ qgroup->max_excl = limit->max_excl;
+ }
+ }
+ if (limit->flags & BTRFS_QGROUP_LIMIT_RSV_RFER) {
+ if (limit->rsv_rfer == CLEAR_VALUE) {
+ qgroup->lim_flags &= ~BTRFS_QGROUP_LIMIT_RSV_RFER;
+ limit->flags &= ~BTRFS_QGROUP_LIMIT_RSV_RFER;
+ qgroup->rsv_rfer = 0;
+ } else {
+ qgroup->rsv_rfer = limit->rsv_rfer;
+ }
+ }
+ if (limit->flags & BTRFS_QGROUP_LIMIT_RSV_EXCL) {
+ if (limit->rsv_excl == CLEAR_VALUE) {
+ qgroup->lim_flags &= ~BTRFS_QGROUP_LIMIT_RSV_EXCL;
+ limit->flags &= ~BTRFS_QGROUP_LIMIT_RSV_EXCL;
+ qgroup->rsv_excl = 0;
+ } else {
+ qgroup->rsv_excl = limit->rsv_excl;
+ }
+ }
qgroup->lim_flags |= limit->flags;
spin_unlock(&fs_info->qgroup_lock);
if (trans && progress && err == -ENOSPC) {
ret = btrfs_force_chunk_alloc(trans, rc->extent_root,
rc->block_group->flags);
- if (ret == 0) {
+ if (ret == 1) {
err = 0;
progress = 0;
goto restart;
static noinline_for_stack int scrub_workers_get(struct btrfs_fs_info *fs_info,
int is_dev_replace)
{
- int ret = 0;
unsigned int flags = WQ_FREEZABLE | WQ_UNBOUND;
int max_active = fs_info->thread_pool_size;
fs_info->scrub_workers =
btrfs_alloc_workqueue("btrfs-scrub", flags,
max_active, 4);
- if (!fs_info->scrub_workers) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!fs_info->scrub_workers)
+ goto fail_scrub_workers;
+
fs_info->scrub_wr_completion_workers =
btrfs_alloc_workqueue("btrfs-scrubwrc", flags,
max_active, 2);
- if (!fs_info->scrub_wr_completion_workers) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!fs_info->scrub_wr_completion_workers)
+ goto fail_scrub_wr_completion_workers;
+
fs_info->scrub_nocow_workers =
btrfs_alloc_workqueue("btrfs-scrubnc", flags, 1, 0);
- if (!fs_info->scrub_nocow_workers) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!fs_info->scrub_nocow_workers)
+ goto fail_scrub_nocow_workers;
fs_info->scrub_parity_workers =
btrfs_alloc_workqueue("btrfs-scrubparity", flags,
max_active, 2);
- if (!fs_info->scrub_parity_workers) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!fs_info->scrub_parity_workers)
+ goto fail_scrub_parity_workers;
}
++fs_info->scrub_workers_refcnt;
-out:
- return ret;
+ return 0;
+
+fail_scrub_parity_workers:
+ btrfs_destroy_workqueue(fs_info->scrub_nocow_workers);
+fail_scrub_nocow_workers:
+ btrfs_destroy_workqueue(fs_info->scrub_wr_completion_workers);
+fail_scrub_wr_completion_workers:
+ btrfs_destroy_workqueue(fs_info->scrub_workers);
+fail_scrub_workers:
+ return -ENOMEM;
}
static noinline_for_stack void scrub_workers_put(struct btrfs_fs_info *fs_info)
return 0;
}
+/*
+ * At the moment we always log all xattrs. This is to figure out at log replay
+ * time which xattrs must have their deletion replayed. If a xattr is missing
+ * in the log tree and exists in the fs/subvol tree, we delete it. This is
+ * because if a xattr is deleted, the inode is fsynced and a power failure
+ * happens, causing the log to be replayed the next time the fs is mounted,
+ * we want the xattr to not exist anymore (same behaviour as other filesystems
+ * with a journal, ext3/4, xfs, f2fs, etc).
+ */
+static int btrfs_log_all_xattrs(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ struct inode *inode,
+ struct btrfs_path *path,
+ struct btrfs_path *dst_path)
+{
+ int ret;
+ struct btrfs_key key;
+ const u64 ino = btrfs_ino(inode);
+ int ins_nr = 0;
+ int start_slot = 0;
+
+ key.objectid = ino;
+ key.type = BTRFS_XATTR_ITEM_KEY;
+ key.offset = 0;
+
+ ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
+ if (ret < 0)
+ return ret;
+
+ while (true) {
+ int slot = path->slots[0];
+ struct extent_buffer *leaf = path->nodes[0];
+ int nritems = btrfs_header_nritems(leaf);
+
+ if (slot >= nritems) {
+ if (ins_nr > 0) {
+ u64 last_extent = 0;
+
+ ret = copy_items(trans, inode, dst_path, path,
+ &last_extent, start_slot,
+ ins_nr, 1, 0);
+ /* can't be 1, extent items aren't processed */
+ ASSERT(ret <= 0);
+ if (ret < 0)
+ return ret;
+ ins_nr = 0;
+ }
+ ret = btrfs_next_leaf(root, path);
+ if (ret < 0)
+ return ret;
+ else if (ret > 0)
+ break;
+ continue;
+ }
+
+ btrfs_item_key_to_cpu(leaf, &key, slot);
+ if (key.objectid != ino || key.type != BTRFS_XATTR_ITEM_KEY)
+ break;
+
+ if (ins_nr == 0)
+ start_slot = slot;
+ ins_nr++;
+ path->slots[0]++;
+ cond_resched();
+ }
+ if (ins_nr > 0) {
+ u64 last_extent = 0;
+
+ ret = copy_items(trans, inode, dst_path, path,
+ &last_extent, start_slot,
+ ins_nr, 1, 0);
+ /* can't be 1, extent items aren't processed */
+ ASSERT(ret <= 0);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+/*
+ * If the no holes feature is enabled we need to make sure any hole between the
+ * last extent and the i_size of our inode is explicitly marked in the log. This
+ * is to make sure that doing something like:
+ *
+ * 1) create file with 128Kb of data
+ * 2) truncate file to 64Kb
+ * 3) truncate file to 256Kb
+ * 4) fsync file
+ * 5) <crash/power failure>
+ * 6) mount fs and trigger log replay
+ *
+ * Will give us a file with a size of 256Kb, the first 64Kb of data match what
+ * the file had in its first 64Kb of data at step 1 and the last 192Kb of the
+ * file correspond to a hole. The presence of explicit holes in a log tree is
+ * what guarantees that log replay will remove/adjust file extent items in the
+ * fs/subvol tree.
+ *
+ * Here we do not need to care about holes between extents, that is already done
+ * by copy_items(). We also only need to do this in the full sync path, where we
+ * lookup for extents from the fs/subvol tree only. In the fast path case, we
+ * lookup the list of modified extent maps and if any represents a hole, we
+ * insert a corresponding extent representing a hole in the log tree.
+ */
+static int btrfs_log_trailing_hole(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ struct inode *inode,
+ struct btrfs_path *path)
+{
+ int ret;
+ struct btrfs_key key;
+ u64 hole_start;
+ u64 hole_size;
+ struct extent_buffer *leaf;
+ struct btrfs_root *log = root->log_root;
+ const u64 ino = btrfs_ino(inode);
+ const u64 i_size = i_size_read(inode);
+
+ if (!btrfs_fs_incompat(root->fs_info, NO_HOLES))
+ return 0;
+
+ key.objectid = ino;
+ key.type = BTRFS_EXTENT_DATA_KEY;
+ key.offset = (u64)-1;
+
+ ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
+ ASSERT(ret != 0);
+ if (ret < 0)
+ return ret;
+
+ ASSERT(path->slots[0] > 0);
+ path->slots[0]--;
+ leaf = path->nodes[0];
+ btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
+
+ if (key.objectid != ino || key.type != BTRFS_EXTENT_DATA_KEY) {
+ /* inode does not have any extents */
+ hole_start = 0;
+ hole_size = i_size;
+ } else {
+ struct btrfs_file_extent_item *extent;
+ u64 len;
+
+ /*
+ * If there's an extent beyond i_size, an explicit hole was
+ * already inserted by copy_items().
+ */
+ if (key.offset >= i_size)
+ return 0;
+
+ extent = btrfs_item_ptr(leaf, path->slots[0],
+ struct btrfs_file_extent_item);
+
+ if (btrfs_file_extent_type(leaf, extent) ==
+ BTRFS_FILE_EXTENT_INLINE) {
+ len = btrfs_file_extent_inline_len(leaf,
+ path->slots[0],
+ extent);
+ ASSERT(len == i_size);
+ return 0;
+ }
+
+ len = btrfs_file_extent_num_bytes(leaf, extent);
+ /* Last extent goes beyond i_size, no need to log a hole. */
+ if (key.offset + len > i_size)
+ return 0;
+ hole_start = key.offset + len;
+ hole_size = i_size - hole_start;
+ }
+ btrfs_release_path(path);
+
+ /* Last extent ends at i_size. */
+ if (hole_size == 0)
+ return 0;
+
+ hole_size = ALIGN(hole_size, root->sectorsize);
+ ret = btrfs_insert_file_extent(trans, log, ino, hole_start, 0, 0,
+ hole_size, 0, hole_size, 0, 0, 0);
+ return ret;
+}
+
/* log a single inode in the tree log.
* At least one parent directory for this inode must exist in the tree
* or be logged already.
u64 ino = btrfs_ino(inode);
struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
u64 logged_isize = 0;
+ bool need_log_inode_item = true;
path = btrfs_alloc_path();
if (!path)
} else {
if (inode_only == LOG_INODE_ALL)
fast_search = true;
- ret = log_inode_item(trans, log, dst_path, inode);
- if (ret) {
- err = ret;
- goto out_unlock;
- }
goto log_extents;
}
if (min_key.type > max_key.type)
break;
+ if (min_key.type == BTRFS_INODE_ITEM_KEY)
+ need_log_inode_item = false;
+
+ /* Skip xattrs, we log them later with btrfs_log_all_xattrs() */
+ if (min_key.type == BTRFS_XATTR_ITEM_KEY) {
+ if (ins_nr == 0)
+ goto next_slot;
+ ret = copy_items(trans, inode, dst_path, path,
+ &last_extent, ins_start_slot,
+ ins_nr, inode_only, logged_isize);
+ if (ret < 0) {
+ err = ret;
+ goto out_unlock;
+ }
+ ins_nr = 0;
+ if (ret) {
+ btrfs_release_path(path);
+ continue;
+ }
+ goto next_slot;
+ }
+
src = path->nodes[0];
if (ins_nr && ins_start_slot + ins_nr == path->slots[0]) {
ins_nr++;
ins_nr = 0;
}
+ btrfs_release_path(path);
+ btrfs_release_path(dst_path);
+ err = btrfs_log_all_xattrs(trans, root, inode, path, dst_path);
+ if (err)
+ goto out_unlock;
+ if (max_key.type >= BTRFS_EXTENT_DATA_KEY && !fast_search) {
+ btrfs_release_path(path);
+ btrfs_release_path(dst_path);
+ err = btrfs_log_trailing_hole(trans, root, inode, path);
+ if (err)
+ goto out_unlock;
+ }
log_extents:
btrfs_release_path(path);
btrfs_release_path(dst_path);
+ if (need_log_inode_item) {
+ err = log_inode_item(trans, log, dst_path, inode);
+ if (err)
+ goto out_unlock;
+ }
if (fast_search) {
/*
* Some ordered extents started by fsync might have completed
root = root->fs_info->chunk_root;
extent_root = root->fs_info->extent_root;
+ /*
+ * Prevent races with automatic removal of unused block groups.
+ * After we relocate and before we remove the chunk with offset
+ * chunk_offset, automatic removal of the block group can kick in,
+ * resulting in a failure when calling btrfs_remove_chunk() below.
+ *
+ * Make sure to acquire this mutex before doing a tree search (dev
+ * or chunk trees) to find chunks. Otherwise the cleaner kthread might
+ * call btrfs_remove_chunk() (through btrfs_delete_unused_bgs()) after
+ * we release the path used to search the chunk/dev tree and before
+ * the current task acquires this mutex and calls us.
+ */
+ ASSERT(mutex_is_locked(&root->fs_info->delete_unused_bgs_mutex));
+
ret = btrfs_can_relocate(extent_root, chunk_offset);
if (ret)
return -ENOSPC;
key.type = BTRFS_CHUNK_ITEM_KEY;
while (1) {
+ mutex_lock(&root->fs_info->delete_unused_bgs_mutex);
ret = btrfs_search_slot(NULL, chunk_root, &key, path, 0, 0);
- if (ret < 0)
+ if (ret < 0) {
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
goto error;
+ }
BUG_ON(ret == 0); /* Corruption */
ret = btrfs_previous_item(chunk_root, path, key.objectid,
key.type);
+ if (ret)
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
if (ret < 0)
goto error;
if (ret > 0)
else
BUG_ON(ret);
}
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
if (found_key.offset == 0)
break;
goto error;
}
+ mutex_lock(&fs_info->delete_unused_bgs_mutex);
ret = btrfs_search_slot(NULL, chunk_root, &key, path, 0, 0);
- if (ret < 0)
+ if (ret < 0) {
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
goto error;
+ }
/*
* this shouldn't happen, it means the last relocate
ret = btrfs_previous_item(chunk_root, path, 0,
BTRFS_CHUNK_ITEM_KEY);
if (ret) {
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
ret = 0;
break;
}
slot = path->slots[0];
btrfs_item_key_to_cpu(leaf, &found_key, slot);
- if (found_key.objectid != key.objectid)
+ if (found_key.objectid != key.objectid) {
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
break;
+ }
chunk = btrfs_item_ptr(leaf, slot, struct btrfs_chunk);
ret = should_balance_chunk(chunk_root, leaf, chunk,
found_key.offset);
btrfs_release_path(path);
- if (!ret)
+ if (!ret) {
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
goto loop;
+ }
if (counting) {
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
spin_lock(&fs_info->balance_lock);
bctl->stat.expected++;
spin_unlock(&fs_info->balance_lock);
ret = btrfs_relocate_chunk(chunk_root,
found_key.objectid,
found_key.offset);
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
if (ret && ret != -ENOSPC)
goto error;
if (ret == -ENOSPC) {
key.type = BTRFS_DEV_EXTENT_KEY;
do {
+ mutex_lock(&root->fs_info->delete_unused_bgs_mutex);
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
- if (ret < 0)
+ if (ret < 0) {
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
goto done;
+ }
ret = btrfs_previous_item(root, path, 0, key.type);
+ if (ret)
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
if (ret < 0)
goto done;
if (ret) {
btrfs_item_key_to_cpu(l, &key, path->slots[0]);
if (key.objectid != device->devid) {
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
btrfs_release_path(path);
break;
}
length = btrfs_dev_extent_length(l, dev_extent);
if (key.offset + length <= new_size) {
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
btrfs_release_path(path);
break;
}
btrfs_release_path(path);
ret = btrfs_relocate_chunk(root, chunk_objectid, chunk_offset);
+ mutex_unlock(&root->fs_info->delete_unused_bgs_mutex);
if (ret && ret != -ENOSPC)
goto done;
if (ret == -ENOSPC)
static void btrfs_end_bio(struct bio *bio, int err)
{
struct btrfs_bio *bbio = bio->bi_private;
- struct btrfs_device *dev = bbio->stripes[0].dev;
int is_orig_bio = 0;
if (err) {
if (err == -EIO || err == -EREMOTEIO) {
unsigned int stripe_index =
btrfs_io_bio(bio)->stripe_index;
+ struct btrfs_device *dev;
BUG_ON(stripe_index >= bbio->num_stripes);
dev = bbio->stripes[stripe_index].dev;
#ifndef _SIRFSOC_RTC_IOBRG_H_
#define _SIRFSOC_RTC_IOBRG_H_
+struct regmap_config;
+
extern void sirfsoc_rtc_iobrg_besyncing(void);
extern u32 sirfsoc_rtc_iobrg_readl(u32 addr);
extern void sirfsoc_rtc_iobrg_writel(u32 val, u32 addr);
+struct regmap *devm_regmap_init_iobg(struct device *dev,
+ const struct regmap_config *config);
#endif
int rc = 0;
if (default_noexec &&
- (prot & PROT_EXEC) && (!file || (!shared && (prot & PROT_WRITE)))) {
+ (prot & PROT_EXEC) && (!file || IS_PRIVATE(file_inode(file)) ||
+ (!shared && (prot & PROT_WRITE)))) {
/*
* We are making executable an anonymous mapping or a
* private file mapping that will also be writable.
if (offset == (u32)-1)
return 0;
+ /* don't waste ebitmap space if the netlabel bitmap is empty */
+ if (bitmap == 0) {
+ offset += EBITMAP_UNIT_SIZE;
+ continue;
+ }
+
if (e_iter == NULL ||
offset >= e_iter->startbit + EBITMAP_SIZE) {
e_prev = e_iter;
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