linux-dev/drivers/gpu/drm/radeon/ci_dpm.c, branch linus/master

drm/radeon/ci_dpm: Remove redundant initialization of variables hi_sidd, lo_sidd

2021-09-07T17:30:50Z

The variables hi_sidd and lo_sidd are being initialized with a values that are never read, they are being updated later on. The assignments are redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King Signed-off-by: Alex Deucher

drm/radeon: Fix fall-through warnings for Clang

2020-11-24T17:05:42Z

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple warnings by explicitly adding multiple fallthrough pseudo-keyword macros, as replacement for /* fall through */ comments. Notice that Clang doesn't recognize /* fall through */ comments as implicit fall-through markings. Link: https://github.com/KSPP/linux/issues/115 Signed-off-by: Gustavo A. R. Silva Signed-off-by: Alex Deucher

drm/radeon/ci_dpm: Move 'si_*()'s prototypes to shared header

2020-11-16T20:56:35Z

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/radeon/si_dpm.c:3802:4: warning: no previous prototype for ‘si_get_ddr3_mclk_frequency_ratio’ [-Wmissing-prototypes] 3802 | u8 si_get_ddr3_mclk_frequency_ratio(u32 memory_clock) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/radeon/si_dpm.c:3815:4: warning: no previous prototype for ‘si_get_mclk_frequency_ratio’ [-Wmissing-prototypes] 3815 | u8 si_get_mclk_frequency_ratio(u32 memory_clock, bool strobe_mode) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/radeon/si_dpm.c:3897:6: warning: no previous prototype for ‘si_trim_voltage_table_to_fit_state_table’ [-Wmissing-prototypes] 3897 | void si_trim_voltage_table_to_fit_state_table(struct radeon_device *rdev, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Cc: Alex Deucher Cc: "Christian König" Cc: David Airlie Cc: Daniel Vetter Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones Signed-off-by: Alex Deucher

drm/radeon/ci_dpm: Move 'ci_*()'s prototypes to shared header

2020-11-16T20:56:34Z

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/radeon/cik.c:1868:5: warning: no previous prototype for ‘ci_mc_load_microcode’ [-Wmissing-prototypes] 1868 | int ci_mc_load_microcode(struct radeon_device *rdev) | ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/radeon/cik.c:5847:6: warning: no previous prototype for ‘cik_enter_rlc_safe_mode’ [-Wmissing-prototypes] 5847 | void cik_enter_rlc_safe_mode(struct radeon_device *rdev) | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/radeon/cik.c:5868:6: warning: no previous prototype for ‘cik_exit_rlc_safe_mode’ [-Wmissing-prototypes] 5868 | void cik_exit_rlc_safe_mode(struct radeon_device *rdev) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/radeon/cik.c:6286:6: warning: no previous prototype for ‘cik_update_cg’ [-Wmissing-prototypes] 6286 | void cik_update_cg(struct radeon_device *rdev, | ^~~~~~~~~~~~~ Cc: Alex Deucher Cc: "Christian König" Cc: David Airlie Cc: Daniel Vetter Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones Signed-off-by: Alex Deucher

drm/radeon/ci_dpm: Remove set but unused variable 'dpm_event_src'

2020-11-13T05:12:08Z

And the piece of code that has never been executed. Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/radeon/ci_dpm.c: In function ‘ci_set_dpm_event_sources’: drivers/gpu/drm/radeon/ci_dpm.c:1369:28: warning: variable ‘dpm_event_src’ set but not used [-Wunused-but-set-variable] Cc: Alex Deucher Cc: "Christian König" Cc: David Airlie Cc: Daniel Vetter Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones Signed-off-by: Alex Deucher

treewide: Use fallthrough pseudo-keyword

2020-08-23T22:36:59Z

Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva

drm/radeon: fix double free

2020-07-08T13:04:25Z

clang static analysis flags this error drivers/gpu/drm/radeon/ci_dpm.c:5652:9: warning: Use of memory after it is freed [unix.Malloc] kfree(rdev->pm.dpm.ps[i].ps_priv); ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/radeon/ci_dpm.c:5654:2: warning: Attempt to free released memory [unix.Malloc] kfree(rdev->pm.dpm.ps); ^~~~~~~~~~~~~~~~~~~~~~ problem is reported in ci_dpm_fini, with these code blocks. for (i = 0; i < rdev->pm.dpm.num_ps; i++) { kfree(rdev->pm.dpm.ps[i].ps_priv); } kfree(rdev->pm.dpm.ps); The first free happens in ci_parse_power_table where it cleans up locally on a failure. ci_dpm_fini also does a cleanup. ret = ci_parse_power_table(rdev); if (ret) { ci_dpm_fini(rdev); return ret; } So remove the cleanup in ci_parse_power_table and move the num_ps calculation to inside the loop so ci_dpm_fini will know how many array elements to free. Fixes: cc8dbbb4f62a ("drm/radeon: add dpm support for CI dGPUs (v2)") Signed-off-by: Tom Rix Signed-off-by: Alex Deucher

drm/radeon: fix array out-of-bounds read and write issues

2020-07-01T05:59:26Z

There is an off-by-one bounds check on the index into arrays table->mc_reg_address and table->mc_reg_table_entry[k].mc_data[j] that can lead to reads and writes outside of arrays. Fix the bound checking off-by-one error. Addresses-Coverity: ("Out-of-bounds read/write") Fixes: cc8dbbb4f62a ("drm/radeon: add dpm support for CI dGPUs (v2)") Signed-off-by: Colin Ian King Signed-off-by: Alex Deucher

drm/radeon: remove defined but not used variables in ci_dpm.c

2020-04-13T16:02:47Z

Fix the following gcc warning: drivers/gpu/drm/radeon/ci_dpm.c:82:36: warning: ‘defaults_saturn_pro’ defined but not used [-Wunused-const-variable=] static const struct ci_pt_defaults defaults_saturn_pro = ^~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/radeon/ci_dpm.c:68:36: warning: ‘defaults_bonaire_pro’ defined but not used [-Wunused-const-variable=] static const struct ci_pt_defaults defaults_bonaire_pro = ^~~~~~~~~~~~~~~~~~~~ Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Alex Deucher

drm/radeon: Don't include

2019-12-05T07:44:28Z

Including is unnecessary in most cases. Replace these instances. Signed-off-by: Thomas Zimmermann Reviewed-by: Emil Velikov Reviewed-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20191203100406.9674-9-tzimmermann@suse.de